This is minus one over r, so I get m MG over r with a minus sign, and that has to be evaluated between infinity and capital R.
这是r的负值,所以在mMG/r上加-号,它处于,无穷远和R之间。
I 've had so many falls that I' m black and blue all over.
我跌倒多次,弄得全身青一块紫一块。
I"ve had so many falls that I"m black and blue all over.
我跌了这么多跤,以致于浑身青一块紫一块。
"Now it's all over,I'm so happy." Apple officially launched the iPad in the U.S.in April.
VOA: standard.2010.05.28
I'm in over my head, so I better just get practical and give you some examples of what I mean."
我意识到自己做不了,因此我最好实际一点,给你们一些例子来传达我的意思“
So I did two years over there and I'm going to finish the rest of my career here
我在那边干了两年,准备在这里完成我剩下的职业生涯。
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