我知道介词后面跟名词。但是一直不明白一个连词时是不是后面必须跟句子。 下面有一个句子，是在一个文章上看到的 like a drop of water from the point of a needle disappearing into the ocean, my days are dripping into the stream of life.其中disappearing in to the water是定语修饰water的不？ 所以相当于like➕名词n.那么这个句子里like是介词？所以后面加名词？ 那我想问如果 把disappearing 变成disappear 这个句子还对不对了？ 意思就是直接like加一个完整的句子 Like a drop of water from the point of a needle dissappear into the ocean,my days are dripping into the ocean. 同问 As a drop of water from the point of a needle dissappearing into the ocean,my days are dripping into the ocean. 和 As a drop of water from the point of a needle dissappear into the ocean,my days are dripping into the ocean. 这两句话都对吗？