3 . The most famous war movies reflect the American public’s continuous fascination with World War Ⅱ and the Vietnam War. Many movies of this kind have been well­received when they were first shown, but few of them have enjoyed lasting fame and popularity. The films on the list of the five most famous war movies still remain fresh and are popular among many people.

The Longest Day

An all­star cast recreates D­Day and the Normandy attack, the greatest landing and aerial (空中的) invasion in history. This is probably the most famous war movie because of the large number of big stars who have roles in the film.

Apocalypse Now

This is a famous war movie because of its description of the Vietnam War and excellent performance from Marlon Brando, Martin Sheen and Robert Duvall. The film, full of memorable scenes and quotes, is widely viewed as a masterpiece of movie making.

The Dirty Dozen

Lee Marvin, playing an officer who thinks and acts independently, is appointed to train twelve prisoners, most of whom have been sentenced to death, to go on a suicide mission to kill several Nazi generals. If any of the men makes it back, they may get a pardon. This is one of the most popular war movies ever made.

Platoon

This famous war movie is the fictional account of a platoon (排) in Vietnam that is divided into two competing groups. The plot is partly based on the director Oliver Stone’s real life experiences.

Midway

This is probably the most famous war movie ever made about navy. It’s based on the battle between Japanese and American aircraft carrier groups near Hawaii in World War Ⅱ that resulted in a decisive American victory.

5 . Removing gender bias

Tailors worked out long ago that men and women have different shapes. Yet this message has failed to enter many other areas of design. Car seat belts, for example, which date back to the 1880s, are often still more suitable for men, who tend to sit farther back than women when driving. And today the most forward-looking tech companies on Earth are still placing old-school bias (偏见；成见) into new products. Consider smart phones. Most are too big to fit comfortably into the average woman’s hand, as are many video-game controllers.

An obvious part of the explanation for their design problem is that men control most of its companies—male-run firms receive 82% of venture-capital (VC) funding. Male bosses may be unaware of the problems women face. They may not flag up obvious areas of concern, or ask the right questions when doing their research for a new product design. And once an idea gets the green light, it will then be handled by product-design and engineering teams, three-quarters of whose members are men. These teams often use data to make decisions, but mixing all users together means they may fail to spot trends based on sex differences. Dependence on historical data, and the lack of data on underrepresented groups, can also create bias in algorithms (算法).

Next comes testing. Naturally, designers test original models on their intended customers, but they may not get feedback from a broad enough group of people. There is also the risk of confirmation bias—designers may listen to what they want to hear, and ignore negative reactions from some groups of users.

Tech’s design bias needs fixing for moral, safety and business reasons. The ethical importance is obvious: it is wrong that women have to make do with a “one-size-fits-men” world, as Caroline Criado Perez, a writer, puts it. As for safety, regulators can tackle that by banning things that are dangerous to women—including seat belts—because they are no! designed properly.

But there is also a powerful business case for avoiding design bias, because huge opportunities are being missed. Women are 50% of the population, and make 70—80% of the world’s consumer-spending decisions.

Change is coming. The first voice-recognition systems struggled to understand female voices, but most now manage just fine. “Femtech” start-up companies, which focus on women’s health and well-being, may raise MYM 1 billion by the end of this year. VC funds and tech firms are hiring more women. Ensuring that products are designed for everyone would lead to happier and safer customers. For the companies that get it right, that means higher profits. What is holding them back?

6 . Most of us in China are used to paying for everything with our phones.     1     At least, this was the case for Lim Swee Say from Singapore, who found his first experience with Chinese payment methods quite impressive. Lim was waiting in line to buy nuts at a street stall (货摊) in Shanghai and saw other customers show their phones and take the nuts without giving cash.     2     It seems that Singapore falls behind in mobile payments. Some Chinese tourists find it inconvenient when they have to use cash in Singapore.

    3     According to Xinhua News Agency, many countries now accept mobile payment services for Chinese tourists, with WeChat Pay covered in 13 overseas countries and regions and Alipay over 200. It’s now common to see the familiar green or blue logos in tourist destinations around the world, from a tiny shop in the Scottish Highlands to a huge department store in New York.

Mobile payments are now a normal part of life in China, and the trend is sweeping other nations. According to Forrester Research, in America, mobile payments rose by 37 per cent in 2016.     4    

This may be partly because western mobile payment services require businesses to install expensive equipment before customers can use them.     5