她又高又瘦，一副精明过人的模样。She was thin and spare, with a sharply intelligent face.他是个瘦高个，头发灰白。He was a tall, thin man with grey hair.她太瘦了，把她养胖点。She is too thin. Feed her up a bit....
正极带正电荷,负极带负电荷.The positive pole carries a positive charge while the negative pole does a negative charge.一些射线稍稍弯向负极.Some of the radiation was bent slightly toward the negative pole.两块磁铁的负极相互排斥.The negative poles of two m...