快性，拼音kuài xìng，汉语词汇，俗语。释义：性情爽快，性情中人，豪爽等。
可能性总是存在的，而且有时候这种事情来得相当的快。
The potential is always there, and sometimes these things can come on pretty quickly.
这种形式的肺癌肿瘤扩散速度快，所以通过手术移除肿瘤的可能性极小。
With this form of lung cancer, tumours spread quickly so it is rarely possible to remove the tumours surgically.
那些柔曲性不佳的男性比女性步伐快。对男性和女性来讲，那些筋肌最紧的人就拥有最快的步伐频率。
The inflexible men were more economical than the women, and for both men and women, those with the tightest hamstrings had the best running economy.
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