isometrics
柯林斯詞典
1. N-PLURAL Isometrics or isometric exercises are exercises in which you make your muscles work against each other or against something else, for example,by pressing your hands together. 等容線
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1. N-PLURAL Isometrics or isometric exercises are exercises in which you make your muscles work against each other or against something else, for example,by pressing your hands together. 等容線