Stay sharp,保持警惕,保持锐利,要保持敏锐。
例句如下：
1.In order to stay sharp, it is important that you exercise your brain.
为了保持敏锐，锻炼你的大脑是很重要的。
2.You probably count on your daily jolt of caffeine to wake up your brain and staysharp all day long.
你可能指望你每天的咖啡因的震动唤醒你的大脑并且持续一整天都很兴奋。 3.Riise admits the threat of new players has prompted him to stay sharp duringthe summer.
里瑟承认，新球员带来的威胁提醒他必须在夏天保持良好的状态。
4.I got a game , shortly , and i gotta stay sharp
我等一下还要比赛，我要保持清醒 5.Those are stronger incentives to stay sharp than golden hellos, handcuffs orparachutes.
相对于签约金、黄金手铐或降落伞，这些是促使他们开动脑筋的更强有力的激励。
6.Older folks who are readers stay sharp while those who watch TV melt into thecouch.
当那些躺在沙发上看电视的老人们给读者留下了鲜明的印象。
7.I think we just want to do everything we can practice-wise to stay sharp so thatour execution is at the level that it is at now.
我们打算通过合理的训练来保持好状态，这样到时候我们的执行力就能达到现在的水准。