Osalmid
利胆酚
🗣️ 情景例句
Win a few, lose a few. that's life.
有得也有失，生活就是如此。
That's unbelievable.
那是难以置信的。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-