trace例句

Brand's keen ear caught the trace of an accent.
布兰德敏锐的耳朵听出了口音。

Now draw or trace ten dinosaurs in ascending order of size.
现在按照体型由小到大的顺序画出或是临摹出10只恐龙。

There was a trace of exasperation in his voice.
他的声音听上去有些愤怒。