Trackers
n. 追蹤者, 追蹤系統(tǒng), 纖夫( tracker的復(fù)數(shù)形式 )
??? 情景例句
Oh, sorry. There must be some mistake.
哦，抱歉，一定是弄錯(cuò)了。
Man is mortal.
人生誰(shuí)無(wú)死。
but the paper was wrapped round a drum which rotated slowly.
根但是紙是卷在慢慢旋轉(zhuǎn)的圓筒上的。