开采

guó jiā qù nián kāi cǎi le duō shǎo kuàng shí

国家去年开采了多少矿石？

How much ore did the nation mine last year?

tā men zài kāi cǎi huáng jīn

他们在开采黄金。

They were mining for gold.

tā men zài kāi cǎi méi kuàng

他们在开采煤矿。

They are mining for coal.

kāi cǎi zī yuán

开采资源

tap natural resources

tí shēng kāi cǎi liàng

提升开采量

increase the amount extracted

shì hé gōng yè kāi cǎi de dì qū

适合工业开采的地区

area suited to industrial extraction

dì xià de kāi cǎi

地下的开采

underground mining