"Obviously, this won't be a regulation ball," Miss Lin said.

“显然，这将不会是一个标准的足球，”林女士说。

youdao

One kind is: The jumper stands first outside the field this end throws a small tile to another end lield. The tile cannot go beyond a line, cannot the line ball, otherwise violates a regulation.

其中的一种是：跳者先站在田外的这一端向另一端田内扔一块小瓦片，小瓦片不能出线、又不能压线，否则就算犯规。

youdao

There was not much wrong with the 34-year-old's game as he hit 17 of 18 putting surfaces in regulation but struggled to make the ball drop.

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Experiments measured the forces and acceleration of a regulation, adult-size-5 ball propelled repeatedly at a magnesium dummy-like head at 18 meters per second, which is considered the average speed a ball is kicked by nonprofessional players.

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Sammy brought up the hundred with his third six over long-on but his innings came to an end with the first ball after the drinks break as he chopped a regulation delivery from Bopara on to his stumps.

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