重點講解：
1. guinea pig 實驗對象；試驗品；
例句：Nearly 500,000 pupils are to be guinea pigs in a trial run of the new 14-plus exams.
這種14歲以上學生參加的最新考試將在近50萬名學生中試行0)Xzl%fo(=@=ewr。
2. make a living 謀生；營生；賺錢過活；糊口謀生；
例句：He left his office job to try to make a living on the land.
他辭去了辦公室的工作，改以務農為生h!yvV3mKWkPKQY5Z。
3. bring up 養育；撫養；養大；
例句：His grandmother and his father brought him up.
是他的祖母和父親把他養大的!e[MueBp|wEsY9KG。
4. in between 在…之間；處于…中間；
例句：We have two lessons this morning, but there's some free time in between.
今天上午我們有兩節課，課間有些休息時間|iJi#mCy*9d_(!U。
5. use as 用作……；
例句：It was a bit old document but at least you can use it as reference.
這是一個有點老的文件，但至少你可以使用它作為參考Rnx&YX@bhb。