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exam. 她考試后度假去了。 I ran to the platform quickly, but the train had already left. 我趕快跑到站臺(tái)上,但是火車已經(jīng)開走了?! e had had dinner before they arrived. 他們到達(dá)之前我們就已吃飯了?! he patient had died when the doctor arrived. 大夫到達(dá)時(shí)病人已經(jīng)死了?! ≡~匯學(xué)習(xí) Word study v. (1)進(jìn)入。穿入: After they had entered the house, they went into the dining room. 他們進(jìn)入了房子后,就去了餐廳。 The bullet entered his heart. 子彈射入了他的心臟?! ?2)參加。加入: Four students from our university entered the final contest. 我們大學(xué)的4名學(xué)生進(jìn)入了競賽的決賽。 He entered politics when he was 27. 他在27歲時(shí)步入了政界。 v. (1)發(fā)生: How did the accident happen? 事故是怎么發(fā)生的? A strange thing happened to a friend of mine a year ago. 一年之前,一件奇怪的事發(fā)生在我的一位朋友身上。 (2)碰巧,恰好(to): I happened to meet her on my way home. 在回家的路上,我碰巧遇見了她?! happen to know that professor. 我正好認(rèn)識(shí)那位教授。