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瞬速， しゅんそく
1. blindingly quick speed, (in) a flash, (in) the blink of an eye
快得令人目眩的速度，转瞬之间，眨眼之间
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瞬発力， しゅんぱつりょく
1. (muscular) explosiveness, explosive power, instantaneous force
2. quick responsiveness, instantaneity
(肌肉)爆发力，爆发性力量；快速响应性，即时性
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瞬間， しゅんかん
1. moment, second, instant
瞬间，刻、秒，刹那