复数: toughies
noun
坚定勇敢的人;无畏的人 a person who is determined and not easily frightened
艰难的选择;难题 a very difficult choice or question
数据来源:WordNet
She turned and asked me a real toughie .
她转过身,问了我一个难题。
I 'd better warn you . I 'm a toughie .
警告你,我可是个流氓。