While

make hay while the sun shines 趁热打铁,抓紧时机 once in a while 偶尔 all the while 一直, 始终 for a while 暂时 while away 消磨 while loop [计] 当型循环 while loops (while-loop 的复数) [计] 当型循环 while we're young while one is at it while one is about it while the grass grows, the steed starves while there's life, there's hope while you're down there strike while the iron is hot 趁热打铁