heftiness n. 重;肌肉发达 释义与例句 n. 1. The property of being hefty. 不可数 词汇关系 名词 同义词 9 muscle brawn brawniness heft massiveness muscularity ponderosity ponderousness sinew 上位词 3 strength heaviness weightiness 词源 From hefty + -ness. 来源：wiktionary