評論
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重點講解：
1. hang on
保??；守??；緊握；牢牢抓??；
eg. The company has been struggling to hang onto its sales force.
公司一直竭力想留住自己的銷售團隊。
eg. The British driver was unable to hang on to his lead.
英國車手沒能保住自己的領(lǐng)先地位。
2. be about to do sth.
即將（做…）某事；快要（發(fā)生…）某事；
eg. I think he's about to leave.
我看他要走了。
eg. The film was about to start.
電影快開場了。
3. in time
及時；不遲；
eg. I arrived just in time for my flight to London.
我及時趕上了飛往倫敦的航班。
eg. She set the alarm so she'd wake up in time to give her two sons their medication.
她定了鬧鐘，以便及時醒來給兩個兒子服藥。
