摘要fall的同义词是“ autumn ”，都表示秋天。例句：“We are always plagued by wasps in autumn.”，每年秋天，我们这里总是黄蜂成灾...

摘要fall asleep的意思为“入睡、睡着、进入梦乡”，造句： As we fall asleep the amplitude of brain waves slowly becomes greate...