This is because many of the books are over $20, and many are under $30.
原因是很多书价格高于 $20，同时还有很多价格低于 $30 的书。
With adoption Numbers around 30%, how many of these mobile customers are using the mobile Internet?
在占人口30%的手机用户中，移动互联网的使用率又有多高呢？
Not for the 30 years that it stood has so many people crossed so quickly.
在它竖立起的近30年里，这里从没有这么多人如此快速地跨越。
Many people would not even notice another person drowning at just 30 yards away.
在仅仅三十码之外，许多人可能根本就无法查觉另外一个人溺水。
Many employees start planning for their retirement by the time they are 30.
很多员工在三十岁就开始计划退休后的生活。
It help many people remember which months of the year have 30 days.
吗?这首小诗帮助许多人记住了一年中哪几个月有30天。
In the office I never seem to have time until after 5:30 p. m., by which time many people have gone home.
在办公室里，我好像知道五点半从有时间，在此前很多人都已回家了。
In the office I never seem to have time until after 5:30 p. m, by which time many people have got home.
在办公室我似乎要到下午五点半才有空，那时许多人都回家了。
Cor. 11:30 Because of this many among you are weak and sick, and a number sleep.
林前十一30因此，在你们中间有好些软弱的与患病的，睡的也不少。
How many English books can you see? I can see 30.
你看见多少本英语书？我看见30本。
How many English books can you see? I can see 30.
你看见多少本英语书？我看见30本。
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