请输入您要查询的英文单词：
单词
mainstay
释义
mainstay
NOUN
C
/ˈmeɪnˌsteɪ/
the person or thing that something depends on in order to continue or be successful 主要依靠；支柱
+of
Oil exports are the mainstay of the economy.
石油出口是经济支柱。