It is the economy's worst performance for a long time.
这在很长一段时间内,都将成为最糟的经济表现。
This allows the server to attain its maximum performance for the test.
这允许服务器在进行测试时获得最大性能。
But it is the economy's worst performance for a long time.
但是这在很长一段时间内,都将成为最糟的经济表现。
from the album,"Fearless." Swift won the Grammy for best country vocal performance for the song.
VOA: special.2010.02.05
So we did a performance for him,
当时我们为他做了一场表演,
And so instead of defining efficiency the way you've got it written there, I'm going to define what's called something different for a refrigerator which is called the coefficient of performance.
现在我们不用,效率的那个定义,我给出一个,有关制冷机的,新的定义,叫做制冷系数。
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