6 sentences

1. 剥削是万恶之源。

   bō​xuē shì wàn'è zhī yuán.

   Exploitation is the root of all evil.

   Source: Dong Chinese Dictionary

2. 信号源就在前面。

   xìn​hào yuán jiù zài qián​miàn.

   The signal source is up ahead.

   Source: OpenSubtitles

3. 我们要努力探寻生命之源。

   wǒ​men yào nǔ​lì tàn​xún shēng​mìng zhī yuán.

   We must strive to explore the source of life.

   Source: Dong Chinese Dictionary

4. 水是生命之源。

   shuǐ shì shēng​mìng zhī yuán.

   Water is the source of life.

   Source: Dong Chinese Dictionary

5. 这种气体极易燃，请远离火源。

   zhè zhǒng qì​tǐ jí yì rán, qǐng yuǎn​lí huǒ yuán.

   This gas is highly flammable; please keep it away from ignition sources.

   Source: Dong Chinese Dictionary

6. 这股清泉就是这条大河的源。

   zhèi gǔ qīng​quán jiù shì zhè tiáo dà hé de yuán.

   This clear spring is the source of this great river.

   Source: Dong Chinese Dictionary