The ball can store up to twenty-four hours' worth of power.
该球可以储存长达24小时使用的电力。
Excuse me, Referee. Can you explain why the ball is "four hits"?
对不起裁判员先生，怎么是四次击球呢？
Four point contract center-oriented thrust ball bearing.
四点接触向心推力轴承。
A ball hit to or over the boundary is worth four or six runs.
一个击到或越过边线的球可得四分或六分。
They have ball games four times a year.
他们每年举行四次球赛。
They have ball games four times a year.
他们每年举行四次球赛。
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