It's important to wash your hands after using the bathroom.

上完廁所後洗手是很重要的。

Make sure to wash your hands with soap and water before eating.

確定在吃東西之前要用香皂和水來洗手。

The teacher is lecturing in science class.

老師在自然課中講課。

Students are learning how canned food preserves shelf life in their science class.

學生在自然課學習罐頭如何保存食物期限。

The students learn how to use computers in computer class.

同學們在電腦課中學習如何使用電腦。

Each student uses a computer during computer class.

每個學生在電腦課的時候都有一台電腦可以使用。