知道确切数目
... keep flat 必须平放 keep count 知道确切数目 keep-alive 点火电极 ...
当局称他们不能记下推土机清理瓦砾时不断被找到的尸体数目。
He could just as easily have used pebbles to keep count.他用鹅卵石都能把账算清楚。
There were so many people in the room that little Jack couldn't keep count of them.房间里的人太多了,小杰克简直数不清了。