work out a mine的用法和樣例：
例句
- A mine is exploited for its minerals.
開發礦山是為了采礦。 - Delma mainly engages in the import and export of blocks, Mine investment and planning, new materials developing of new materials as well as the market development.
致力于推動和合理開發礦山資源及新品種的品牌建設和市場開發。
以下網站內容獨特創造，受著作權愛護，侵權案必究
- 昨日網絡熱詞
相關詞典網站：
