After using the toilet, always wash your hands.

上完厕所，一定要洗手。

youdao

After using the toilet and flushing it, he washes his hands.

上完厕所，并冲洗后，他洗了手。

youdao

These include after using the toilet, after cleaning a baby and before touching food.

这些关键时刻包括用完马桶、为婴儿洗完澡之后以及接触食物之前。

youdao

People are being urged to wash their hands carefully with soap and purified water after using the toilet or changing a baby's diaper.

VOA: special.2010.11.10

Wash your hands thoroughly and frequently, especially after using the toilet, before eating, and after sneezing or coughing.

CNN: Sore throat

Further, across a global review of 11 countries, the average rate of handwashing after using the toilet is only 17 percent.

FORBES: Influencing Behavior: What Will It Take to Save 600,000 Lives a Year?

Many foods become contaminated when prepared by people who don't wash their hands thoroughly after using the toilet or changing a diaper.

CNN: Salmonella infection