重點講解:
1. used to do sth. 過去常常;過去曾;
例句:He used to muck out the stables every morning.
他過去每天早上打掃馬廄 。
2. or so …左右;…上下;
例句:We can seat you in five minutes or so.
五分鐘左右我們就可以為您安排好座位 。
3. back and forth 來回;往返;
例句:He promenaded back and forth on the ship's deck.
他在船的甲板上來回散步 。
4. get along with (與…)和睦相處;
例句:I find it difficult to get along with your brother.
我覺得難以同你的兄弟相處 。
n. 開關,轉換,鞭子
v. 轉換,改變,交換