keep vt.保存,保持;留住 We keep in touch with each other by Email since he left China. 他离开中国以后,我们用Email保持联系。
keep to 坚持某种习惯,遵循,靠(左右) 8. In England traffic must keep to the left.在英国,车辆必须靠左行驶。 keep back 留在后面,阻止,忍住 keep down 控制,下降,缩减开支
keep off 避开,远离,让开 keep out 使其等在外面,不让进入
keep up 保持,维持,鼓足勇气 keep sb from doing 阻止某人做某事
keep sth from sb 把某事瞒着某人 keep up with 跟上
knock vi.&
knock into sb 撞到某人身上;偶然遇到 knock sth down 降低价格,拆除,缩减开支
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