This is the plus or minus, so the product of the uncertainty and the momentum.

是加或减，所以不确定度和动量的结果。

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I'm frustrated that I can't lose weight.

我一点也减不下来，真让人泄气。

I'm frustrated 课堂 - SpeakingMax英语口语达人

Well if you're not defending the easy pass, he doesn't lose anyone, and if he attacks through the hard pass he's going to lose at least one battalion.

如果你没有在平坦之途设防他兵力不减,然而如果他从崎岖之途进军,那么他将至少损失一个营

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