Children laugh around 400 times a day.
小孩一天大约笑400次。
Those pyramids were built around 400 AD.
那些金字塔修建于公元400年左右。
The region is at around 400 latitude North.
该地区大致位于北纬40度。
You actually sold around 400 pieces last year.
去年你实际上卖了大约400架。
Around 400 women and men took part in the study.
约有四百名男性和女性参与了这项研究。
The retail price of this camera is around $ 400.
这台照相机的零售价大约是在400美金左右。
The track is 400 metres around.
跑道一圈有四百米长。
The track is 400 metres around.
跑道一圈有四百米长。
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