重點講解：
1. in confidence
私下；秘密；
eg. We told you all these things in confidence.
我們告訴你的這些事都需要保密。
eg. I should like to exchange a few words with you in confidence.
我想私下和你交換點意見。
2. fall out
（頭發、牙齒）掉落，脫落；
eg. Your baby teeth will fall out in two years time.
再過兩年你的乳牙就會全部脫落了。
eg. Her hair started falling out as a result of radiation treatment.
由于放療，她開始掉頭發。
3. can-do
能干的；積極進取的；勇往直前的；
eg. He is known for his optimistic can-do attitude.
他因樂觀敢闖而聞名。
eg. Her can-do attitude is what made her our choice for the job.
她自信的態度使得我們挑選她做這份工作。
4. clean up
打掃；清掃；把…弄干凈；
eg. The students took turns to clean up their classroom.
學生們輪流打掃教室。
eg. Aunt Mary volunteered to clean up the kitchen.
瑪麗阿姨主動要求清掃廚房。