1.subject to 隸屬的，服從的；易受……的，易患……的；由……決定的，取決于……的
例句：But I have little idea which book is to be read or looked over again at what time. It is completely subject to the whims of the moment.
什么書在什么時候再去讀再去翻，連我自己也無把握，完全要看一個時期一個時期的興趣。
2.submit to 屈服，服從；聽從，忍受；提交，呈遞
例句：I submit to you this was not a hot-blooded crime of passion! That could at least be understood, if not condoned.
我提出這一點，是說明這不是一時之怒的沖動而犯下的罪行，如果是一時沖動的話，即使不能被寬恕，至少也可以被理解。
3.substitute A for B 用A代替B
例句：Am I just a substitute for it? I was just used to out of you lonely?
我只是個代替品嗎？還是我只是你用來擺脫寂寞的？
4.succumb to 屈服于，聽任；被壓跨，死
例句：Very few failed to succumb to this delightful young man so full of the pathos of that uniform.
大多數人都對這個穿軍服的愉快的小伙子那豐富的哀婉情調大加贊嘆。
5.suck up 吸收，吸出
例句：The sea is so high that the waves do not break at all; they thump against the rough stone wall and suck up the weedy, dripping steps.
海水高漲，海浪毫無遮攔地撞擊著頑石粗墻，吮吸著雜草叢叢、水珠串串的石梯。
6.suffer from 深受……之苦
例句：Just as the United States is not the only country that would suffer from nuclear terrorism, we cannot prevent it on our own.
正如美國不會是遭受核恐怖主義危害的惟一國家，我們也無法單槍匹馬地防止核恐怖主義。