我下决心有些慢。I've been a bit slow in making up my mind.我正下决心准备去拜访时，西蒙来了。I was steeling myself to call round when Simon arrived.机不可失，下决心吧。It's now or never, so make up your mind....
I then begin to improvise melodies vocally.接着我开始哼起即兴创作的旋律。The two melodies are played in counterpoint.用对位法来演奏这两首曲调。And now for your further delectation, we present a selection of popular melodies.为使你们更加愉快, 我们奉献给你们一组精选的流行...
In analyzing the diaries, they found troubling age - related trends in sleep behavior.分析这些日志后, 研究人员发现睡眠行为中存在的年龄相关的问题.The ulcer had been troubling her for several years.溃疡已经折磨她好几年了。A close look at the statistics reveals a...