stick sth. on 把贴在上
stick to 粘着，坚持
stick at 继续勤奋地致力于stick ones work坚持工作;stick at ones books 勤奋读书
stick to 坚持
stick to ones promise 比喻食言
stick to ones friend 忠于朋友
in stock 有货
be strict with 对严格要求
be/go on strike 罢工
subject...to 使受到
subject to 易受到的
submit....to 提交
substitute...for 以代替
suffer from 患受苦痛
be suitable for 合适的
in sum 大体上，总之
supply sb. with sth 向某人提供某物
superior to 优于，比好