Don't forget to flush the toilet after use.

用完厕所，不要忘了冲。

youdao

It's important to flush the toilet. And be sure to wash your hands.

冲厕所是十分重要的。而且一定要洗手。

youdao

She reuses her drinking cup for days without washing it, and she saves her dishwater for plants and unheated shower water to flush the toilet.

她的咖啡杯好几天才洗一次，洗过盘子的被她用来浇灌，洗澡水则被用来冲厕所。

youdao

This creates a mildly disinfecting solution that can be used to flush the toilet.

ECONOMIST: Monitor: Flushed with pride | The

You may have to flush your toilet twice because of the low flow standards from the Department of Energy, and when you go downstairs for breakfast, even the size of the holes in the Swiss cheese that you grate into your omelet are regulated by the Department of Agriculture.

NPR: A GOP Consensus at the Economic Conference

More people now have mobile telephones around the world than have access to a flush toilet.

FORBES: More People Have Mobile Phones Than Toilets