很高興為您解答!
【譯文】
If someone looks very proud or satisfied with himself,we say he looks like the cat that ate the canary.
如果某人看起來很自豪或者自滿,我們說他就像偷吃了腥/金絲雀的貓 （意為：得意極了）.
【分析】
If 引導(dǎo)的條件狀語從句,主語為“主+謂+省略了引導(dǎo)詞that的賓語從句”.
Look like the cat that ate the canary這個俗語是用來形容一個人顯得非常滿足,就像一只貓終于實(shí)現(xiàn)了它長期來的愿望,把鳥籠打開,把里面那只可憐的金絲雀吃了一樣地感到滿足.
從句中的that ate the canary 是一個that引導(dǎo)的定語從句,修飾the cat.that是引導(dǎo)詞,無意義,在從句中作主語.