Within a half hour, two hundred people joined the line!

不到半小时，竟然有二百人跟着他们排队！

youdao

Following a bite on the hand, the entire arm will become swollen within a half hour and skin will become purple.

手上如果被咬了一下，半小时内整个手臂都会肿胀发紫。

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The nurse-midwives of literacy, public librarians, are already loaning e-readers; a library that got 10 as gifts reported that within a half hour they had all been checked out.

文化知识的助产士——公共图书管理员----开始出借电子书阅览器了；有报道称，一家图书馆获赠10台电子阅览器，在半小时之内就都被借走了。

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The jets will fly point-to-point among the nation's largely underused 5, 400 smaller airports, situated within a half hour's drive of 93% of Americans.

FORBES: A700's Numbers

There are 13 Chevy dealers within a half hour's drive, any number of which could be played off each other on a given Saturday morning.

FORBES: Magazine Article

According to the City of York Council, the charging technology can add a 30-mile range to a car's battery within a half hour of use.

ENGADGET: York announces pay-as-you-go EV charging network, beats London to the punch