重點講解:
1. on fire 著火;起火;在燃燒;
The captain radioed that the ship was on fire.
船長發(fā)無線電說船著火了 。
2. on average 平均起來;按平均值;
On average each report requires 1,000 hours to prepare.
準備一份報告平均需要1,000小時 。
3. in turn 繼而;轉(zhuǎn)而;反過來;
Increased production will, in turn, lead to increased profits.
增加生產(chǎn)會繼而增加利潤 。
4. heat up 變熱;
In the summer her mobile home heats up like an oven.
夏天一到,她的活動住房就變得像烤爐一樣熱 。