重點講解：
1. hold sb. captive/be held captive
俘虜；扣押；關押；
eg. Rebels in Liberia have released four foreigners after holding them captive for a week.
利比里亞的叛亂分子釋放了4名被扣押了一個星期的外國人R.m&LNXsmx-(rA_CF5t。
eg. They were held captive by masked gunmen.
他們被蒙面的持槍歹徒劫持了=kihvylPfac)=。
2. be able to do sth.
（因具有品質或技能）能做到…的；
eg. He conjectured that some individuals may be able to detect major calamities.
他猜測說有些人也許能夠察覺重大災難SLD%q)=ij)+WITcz。
eg. We were not able to meet the deadline because of manufacturing delays.
因為制造方面的延誤，我們沒能趕上最后期限B).G^o0dcl。
3. attempt to do sth.
嘗試，試圖（尤指做困難的事）；
eg. He didn't attempt to answer.
他沒有試圖去回答這些問題52QhNrzN3Bf9b@S#_f。
eg. We can attempt to repair it.
我們可以試著修復它了gRRlf_R]N7Ft~!。