重點講解:
1. crank up 使增加;使增強;
The legal authorities cranked up the investigation.
執法部門加大了調查力度 。
2. taper off 逐漸減少;逐漸縮小;
Immigration is expected to ta per off.
估計移民會越來越少 。
3. grind to a halt (使)(生長、發展、活動等)完全停止;
The production lines ground to a halt for hours while technicians tried to debug software.
生產線停工達數小時之久,在此期間技術人員試圖糾除軟件錯誤 。
4. bounce back 恢復;復原;
He is young enough to bounce back from this disappointment.
他還年輕,會很快從失望沮喪中恢復過來的 。
n. 環境,外界