toughness/ˈtʌf.nəs/名词坚韧;牢固She has a reputation for toughness and resilience.她以坚韧顽强而著称。韧性They can't face the toughness of the competition.他们无法面对激烈的竞争。(食物)硬度The hamburger was spoiled by the toughness of the meat.这个汉堡包因为肉质太硬而不好吃了。想跟读,去练习