keep an eye on v. 照看；留意；密切注視keep an account of 記載，記錄keep an account 記賬keep aloof from 脫離 避開 不參加某種活動keep alive arc [交通運輸工程]維命弧keep alive 點火電極；保持生機；使……活著keep ahead 領先；保持領先地位keep active 保持活躍狀態(tài)keep accounts 記賬keep account 記帳keep abreast with the times 跟上潮流keep abreast with 保持與…并列；不落后于；跟上keep abreast of the times 與時俱進，跟上時代keep abreast of 與……并駕齊驅；了解……的最新情況keep a watchful eye on 密切關注 留意keep a watch on 注意keep a tight rein on 對…嚴加約束keep a temporary account 浮記keep a straight face 板著臉keep a stiff upper lip 堅定不移；勇敢地面對災禍