mainstay
n. 主要支持
近义词：dependence，backbone，pillar，stem，support，prop，spine，strength，breadandbutter，lifeblood，basis，core，keystone，anchor，linchpin，lynchpin，
英英释义
Noun
- a prominent supporter;
"he is a pillar of the community"
- a central cohesive source of support and stability;
"faith is his anchor" "the keystone of campaign reform was the ban on soft money" "he is the linchpin of this firm"
- the forestay that braces the mainmast
例句
用作名词(n.)
- He is the mainstay of our theatre group.他是我们剧组的台柱。
- Farming is still the mainstay of this country.农业仍是这个国家的主要依靠。