"有根"是个多义词,它可以指有根(北方俚语),有根(汉语词汇)。
有根绳子挂在它上面。
这里有根绳子。
要不是他们中间有根杆子隔着,本来是可以逃走的。
They might have escaped had a light pole not gotten between them.
When you're driving in your car, there's a needle and the needle says 60; that's your velocity at this instant.
当你在开车时,有一根指针指着60,表示你这个时刻的速度
Suppose I had a rope, that stretched from that into the room, all the way across-- to this end of the room.
假设我有一根绳子,从屋子的这一端,一直伸展到-,屋子的这一端。
We only have the one bond so the actual HF molecule is polar, it has a net dipole.
但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。
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