It’s a lonely life for him, living there all on his own.
You shouldn’t be out on your own at this time of night.
Your grandfather did it all on his own.
a small country that cannot survive on its own
英语词典包含67175条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。