为什么sound用在句子中变成sounds?例句：That sounds nice.

为什么sound用在句子中变成sounds?例句：That sounds nice. Sound sound sound在句中为什么都要加s啊 sound为什么用形容词修饰? 这个句子中系动词为什么变成be了It is crucial that those new plants be environmentaly sound.SORRY，全句是If we are ever going to protect the atmosphere,it is crucial that those new plants be environmentally sound.(在这里plants 不 what you played sounded[sound] like beethoven为什么sound变成sounded a sound sleep中sound是什么词性 在句子中怎样判断sound 是实义动词,还是系动词?That sounds very____D__.A.good B.well C.nice D both A and C 问：sound 在这里做动词讲,用well 修饰不行吗,B 选项为什么不对? so we could hear the sound of running water although we couldn`t see it.为什么so和although可以放在一个句子中? voice sound 怎么用 sound asleep怎么用 用英语单词sound造句 That sounds good.这句话sound后面为什么要+s?什么情况下sound+s?12.24月考,have在什么时候用?has在什么时候用?does什么时候用? the song sounds very nice中,sound为什么加s? sound为什么有时加s 为什么sound后加s 在proteus中sound与speaker有什么区别?