Definition
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fast
Fast means moving or capable of moving at high speed; quick.
快速是指以高速度移动或能够移动;迅速。
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She runs fast, finishing the race in record time.
她跑得很快,以创纪录的时间完成了比赛。
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The cheetah is the fastest land animal in the world.
猎豹是世界上最快的陆地动物。
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He needs to eat something fast before the meeting starts.
在会议开始之前,他需要快点吃点东西。