661. suffer from 患…病; 受…苦痛

660. substitute…for 以…代替…

659. submit…to 提交

658. subject…to(=cause…to experience)使受..到 subject (adj.) to 易受到…的

657. be/go on strike 罢工

656. be strict with 对…严格要求

655. in stock 有….货

654. stick to (=refuse to leave or change)坚持;

stick to one’s promise 比喻食言 stick to one’s friend 忠于朋友

653. stick at (=continue to work hard at)继续勤奋地致力于…;stick one’s work坚持工作; stick at one’s books 勤奋读书

652. stick to 粘着, 坚持