A: What are the main pillars of the local economy?
A：当地经济的主要支柱是什么？

B: Tourism and agriculture are the primary pillars.
B：旅游业和农业是主要的支柱。

1) 建筑物的物理支柱

2) 制度或思想的根本原则

3) 关键人物或核心力量

1. 柱子；支柱

2. 基本原则；核心要素

noun

1. Vertical structures used as support in a building.

2. Important people or things that provide support for something.

Synonym: columns, supports, foundations