keep down卧下,镇压,控制,缩减,保留 keep...from...v.阻止；避开 keep-fit 体操 keep at 坚持,纠缠 keep quiet 保持安静 keep secret 保密 keep away 防范 keep after 一再提醒 keep shady 隐匿,躲藏 keep watch 守...