胸肌,尤指胸大肌
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胸肌,尤指胸大肌
a muscle of the chest, especially the pectoral muscle
He has been doing push-ups to strengthen his chest muscles.
他一直在做俯卧撑来加强胸肌。
胸肌,尤指胸大肌
a muscle of the chest, especially the pectoral muscle
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