我们最近在研究开发一门新事业。

Wǒmen zuìjìn zài yánjiū kāifā yì mén xīn shìyè.

Recently, we’ve been researching and developing a new venture.

政府打算开发这片空地。

Zhèngfǔ dǎsuàn kāifā zhè piàn kōngdì.

The government plans to develop this vacant lot.

他们努力开发天然资源。

Tāmen nǔlì kāifā tiānrán zīyuán.

They’re working hard to develop natural resources.