keep track of time meaning in English

记住时间
掌控时间

One who keeps track of time ; a timekeeper
计时员一个记录时间的人；计时员
Okay , you can just go , but keep track of time because i need you to be home in an hour
好吧，你可以走了，但记住时间，因为我要你一小时内回家。
Nothing ever happens ; i have devised a way to keep track of time , every night i will go out to the garden , pick up a tiny stone and put it under grandma ' s comfy bench to mark a day
什么事都不曾发生?我想出一个记录时间的办法，每夜我到花园去捡一颗小石子放在奶奶的舒服长椅下作记号算一天。
Clocks will be one of britain ' s weapons against problem gambling when it is employed to help gamblers keep track of time . clocks will be one of britain ' s weapons against problem gambling when it the sector , allowing a new wave of large las vegas - style casinos across the country , the government said last thursday
英国政府上周四表示，在放开对赌博业限制，允许在全国范围新开一些拉斯韦加斯式大赌场的同时，在赌场内挂放钟表将成为预防问题赌博的手段之一。