【推荐1】If you suffer from shyness, you are not alone, for shyness is a universal________ (现象). （根据汉语提示单词拼写）

【推荐2】…but many of today’s sound professionals are sharing their knowledge and experience with professionals in other fields to create new products based on the ________(现象) we call sound. (根据汉语提示单词拼写)

【推荐3】There is a natural p____________that scientists call the “greenhouse effect”. (根据首字母提示单词拼写)

【推荐1】Lack of confidence is a psychological ________(障碍)to success. (根据汉语提示单词拼写)

【推荐2】The building is both a museum and a research and educational f_____________ (机构、设施). (根据汉语意思和首字母填空)

【推荐3】He had to earn his own living when he was a ________ (青少年). (根据汉语提示单词拼写)

【推荐1】The _______(讲座) was put off due to the power failure. (根据汉语提示单词拼写)

【推荐2】The ball missed the ______(球门) by a few inches. (根据汉语提示单词拼写)

【推荐3】It should have been an ________ (时刻) for happiness, but he could not feel any real joy. (根据汉语提示单词拼写)