英语情景对话：
A: Have you met John?
你见到约翰了吗？
B: Yeah, he came back from America last week.
见到了，他上个星期从美国回来。
A: Have you noticed how fluently he speaks English? He has only lived in America for less than three months.
你注意到他说英语说得非常流利吗？他在美国住了才不到3个月。
B: He must have a good ear.
他的听觉一定非常敏锐。
习语：good ear 听觉敏锐
支持范例：
She has a good ear for languages.
她学语言的听力很好。
He has a good ear for music.
他对音乐颇有鉴赏力。
Mary is a singer with a good ear for harmony.
Mary是一位对和声有敏锐听力的歌唱家。
英语学习笔记：
less than：不到，少于
Eg. It's less than five minutes' walk to a shopping mall．
走路不到五分钟就有成片的商店。
Eg. He is no less than fifty centimeters round the middle．
他的腰围不小于五十公分。
Eg. I can't wrap up the peace talk in less than fifty pages.
我无法以不到50页纸的篇幅写出和平会谈总结。
Eg. Less than twenty of them remain now.
他们剩下的现在还不到二十人。
