WORD BY WORD
firmness
英/fˈɜːmnəs/
美/ˈfɝmnəs/
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01n.
坚固, 坚牢, 坚定
the muscle tone of healthy tissue; the property of being unyielding to the touch
WORD BY WORD
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the muscle tone of healthy tissue; the property of being unyielding to the touch