1 a man who has not yet married 未婚男子;单身汉
☞Nowadays single is the most usual word that is used to describe a man or a women who is not married. a single man/woman 现今 single 是称呼未婚男女最常用的词:a single man/woman 单身男子/女子
2 a person who has a first university degree 学士:
a Bachelor of Arts/Science文/理学士
bachelor/ʹbætʃəlɚ; ˈbætʃələ/n 1 [C] a man who has never been married 未婚男子﹐单身汉 2 Bachelor of Arts/Science/Education etc a university degree 文学士/理学士/教育学士等
bachelorbachelorbachelorsnoun1a man who has never married2Bachelora person who has a university degree (= they have finished the course and passed all their exams): a Bachelor of Science