Some days, don’t you think, “Wouldn’t it be nice if the laundry(洗衣) would just do itself?” Self-cleaning clothes may sound _________. But Australian researchers have found a way to make something like this _________!

A team at RMIT University in Melbourne, Australia, found a way to put special nano-structures(纳米结构) into clothing, which can then clean the clothes. When sunlight _________ the nano-structures, they break down the dirt and stains(污渍). The nano-structures don’t break down the actual clothing because cotton and the other clothing materials are too strong to be broken down.

According to CNN, the researchers covered the clothing in a solution(溶液) made of silver and copper(铜) nano-structures. _________ it takes is 40 minutes of sunlight and your clothes will look _________ new.

So if you spill on yourself during lunch, you can step outside for a walk, and it will be clean _________ the time you go inside. It not only makes your life easier, but can also be good for the _________.

According to the US Department of Energy, the average load of laundry uses about 25 gallons(about 94 liters) of water. Water is a very important resource, so using _________ of it to wash clothes is better for the environment. So one of the scientists at RMIT University knows more needs to be done.

There’s more work to do before we can start _________ our washing machines,” said DiRajesh Ramanathan, “but this is a strong foundation(基础).”

So what’s the next step? Ramanathan wants to either start selling the solution by itself or convincing(说服) clothing makers to __________ their clothing with the solution.

As the virus spread, it quickly became clear that Covid-19 is a disease that mainly kills the elderly and is easily spread by crowds or close contact. Here is a chart about corona-virus（冠状病毒） deaths in different countries.