within怎么读如下：
英 [wɪˈðɪn] 美 [wɪˈðɪn]
adv.
在内部;在里面
prep.
在(某段时间)之内;在(某段距离)之间;不出(某范围或限度);在 里
n.
内部
扩展：
prep.
1
不出（某段时间）；在（某段时间）之内
before a particular period of time has passed; during a particular period of time
You should receive a reply within seven days.
你会在七天之内收到答复。
The ambulance arrived within minutes of the call being made.
打电话后几分钟内救护车就到了。
Two elections were held within the space of a year.
在一年的时间之内举行了两次选举。
2
不出（某段距离）；在（某段距离）之间
not further than a particular distance from sth
a house within a mile of the station
离车站不到一英里的一所房子
Is it within walking distance ?
那里步行走得到吗？
3
不出（某范围或限度）；在（某范围）之内
inside the range or limits of sth
That question is not within the scope of this talk.
那个问题不在本次会谈范围之内。
We are now within range of enemy fire.
我们现在处于敌人的火力射程以内。
He finds it hard to live within his income (= without spending more than he earns) .
他觉得靠自己的收入生活难以为继。