keep one's promise/words 遵守某人的诺言
keep out 使……不进入
keep quiet 保持安静
keep sb. doing sth. 让某人一直做某事
keep sb. from doing sth. 阻止某人做某事
keep silent 保持沉默
keep sth. in check 阻止、防止、阻碍
keep the record 保持纪录
keep the rules 遵守规则
keep up 维持、保持(精神状态)
key points 要点
kiss each other goodbye/hello 与某人亲吻再见/问好
knock at/on the door/window 敲门、窗
knock down 绊倒
