mainstay
US /ˈmeɪn.steɪ/
UK /ˈmeɪn.steɪ/
名詞
支柱, 中堅, 主要依靠
a person or thing on which something else is based or depends
範例:
•
Agriculture is the mainstay of the country's economy.
農業是該國經濟的支柱。
•
The elderly residents are the mainstay of the local church.
老年居民是當地教堂的中堅力量。