He’ll have to be on his mettle if he wants to win the next race.
他如果想赢得下次比赛，就得全力
。
He’ll have to be on his mettle if he wants to win the next race.
他如果想赢得下次比赛，就得全力。
The job exacts the utmost effort on your part.
这件工作需要你们全力。
They were working under the gun to get the bridge repaired before the rainy season set in.
他们全力, 便在
季到
把桥修复。
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