单词	fast-twitch
释义	fast-twitch adjective ˈfas(t)-ˌtwich  : of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch Word History First Known Use 1958, in the meaning defined above Medical Definition fast-twitch adjective ˌfas(t)-ˌtwich  : of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch
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