單詞複習2

obligate: [ 'ɔbligeit ] v. 使負義務,強制,預留
同義詞：oblige
例句與用法:
1.    We were obligated to attend the opening ceremony.
    我們有必要參加開幕式.
2.    He felt obligated to help.
    他覺得有責任予以幫助.

  equivalent: [ i'kwivələnt ]
a. 等價的,相等的
n. 相等物

1.He changed his pounds for the equivalent amount in dollars.

他把英鎊兌換成等值的美元。

2. Changing his job like that is equivalent to giving him the sack

那樣調換他的工作等於是解僱了他。