1.top-selling 暢銷的
例句:Radio 1's playlist is dominated by top-selling youth-orientated groups.
廣播一臺主要播放一些面向年輕人的樂團所演唱的暢銷曲目 。
2.heart attack 心臟病
例句:He died of a heart attack brought on by overwork.
他死于過勞引起的心臟病發作 。
3.be essential to 對..重要
例句:It will be essential to establish how the money is being spent.
查清楚這筆錢將作何用途至關重要 。
4.work on 從事于
例句:The scientists are still working on inventing new methods of reaching outer space.
科學家們仍致力于發明到達外層空間的新方法 。