Act of one that works.

劳动；工作。

The manner of functioning or operating; operation.

运作方式。

An excavation or group of excavations made in mining, quarrying, or tunneling.

矿坑；采石场。

Engaged in work.

正工作着的。

Sufficient to produce results.

足以产生作用的。

Needed or used for work or practical purposes.

工作用的；有实际用途的；实用的。