keep tab on v. 監(jiān)眡；記錄keep straight on 一直走下去keep straight 行爲正直keep still 保持不動keep sth. in mind 記住keep sth to oneself 不讓他人分享；保密keep sth on 穿著keep sth in mind 記住keep step keep something to oneself 對...秘而不宣keep smiling 保持微笑keep smile 保持微笑keep skills fresh and up-to-date [物理學]使技能可以不斷更新[教育學]使得技能可以與時俱進keep silent 保持沉默；緘默keep silence 保持沉默，保持安靜keep separate accounts 獨立核算keep secret 保密；保守秘密keep score 保畱得分；在比賽中記分keep sb out of 不讓……入內keep sb on 繼續(xù)雇傭某人