buy up sth
— phrasal verb with buy uk/baɪ/usverb bought, bought
to buy all of something or as much of it as you can get, especially if it is cheap:
Investors continued to buy up stocks at a frantic pace.
英语词典包含110679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。