慢慢加速;打起精神;
You must get up steam.
你必须打起精神来.
The train has to get up steam again after a stop.
火车停了以后,启动时又得慢慢加速.
It takes awhile for this old boat to get up steam.
这条古老的船花了点时间慢慢加速.
Get up steam, and you will be sure to succeed.
加把劲, 你一定会成功的.
We were told to get up steam as best we could.
我们被告知要尽可能打起精神.
I was just getting up steam to get to the summit of mountain.
我正鼓足干劲爬上山顶.
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