tough·ness [ˈtʌfnəs] 名词 no pl
1. toughness (strength):
- toughness
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- toughness
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2. toughness (determination):
3. toughness (of meat):
- toughness
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- an outward show of confidence/toughness
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- toughness
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- toughness no 冠词, no 复数
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- toughness no 复数
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- toughness no 复数