submerge v.(使)沉没，淹没
The coastal city wassubmerged by the flood.那个海滨城市被洪水淹没。
submit v.①服从②提交，递交
Employees who refuse to submit to the authority of the boss are usually dismissed.拒绝服从上司管理的员工通常会被开除。
Applicants for the job are asked to submit their resumes.这个职位的申请者被要求提交简历。
subsequent adj.随后的，后来的
The story will be continued insubsequent issues of the magazine.这则故事将在随后几期杂志中连载。
substance n.物质；实质
Celery contains a valuable chemical substance that helps lower blood pressure.芹菜中包含一种珍贵的化学物质，有助于降低血压。
substantial adj.相当的，可观的
The politician won the election by a substantial number of votes.那位政治家以相当多的票数赢得选举。
substitute vt.代替 n.替代者，代替品
You can substitute vinegar for lemon juice in this recipe, but it does not taste quite as good.你可以用醋代替这份菜谱中的朽汁，但味道尝起来略差一些。
Vitamin should not be used as asubstitute for a healthy diet.维生素不应该成为健康饮食的代替品。
subtraction n.减少；减法
The subtraction of a number from a smaller number yields a negative number.用一个较小的数字减去一个较大的 数字会得到负数。
succession n.系列，连续
Manchester scored three goals in quick succession.曼彻斯特队接连进了三个球。
suck v.吸，吮，吸取
She was sitting on the grass sucking lemonade through a straw.她坐在草地上用吸管喝着柠檬水。
sufficient adj.足够的，充足的
The banks have built up sufficient reserves to cope with the crisis.为了应对危机，银行已经积累了充足的准备金。