The teachers correct the students' work.

老師批改同學的作業。

They use a red pen to correct the students' work.

他們使用紅筆來批改學生的作業。

The students play the Chinese flute in class.

學生在課堂上吹中國笛。

They practice the Chinese flute in class.

他們在課堂上練習中國笛。

The students train for the high jump event.

學生們為跳高項目進行訓練。

They take turns doing the high jump.

他們輪流跳高。

Percussion means you must strike or hit something to make a sound.

打擊樂器意味著您必須敲打或敲打某物才能發出聲音。

Many musical instruments are percussion instruments such as the drums and the yangqin.

許多樂器都是打擊樂器，如鼓和揚琴等。

The students learn about water quality in class.

學生在課堂上了解水質。

The teacher teaches the importance of water quality.

老師教導水質的重要性。

The students are participating in Chinese class.

學生們正在上國語課。

They use a dictionary in Chinese class.

他們在國語課上使用字典。

The students draw in art class.

學生在美術課上畫畫。

They draw many different things in art class.

他們在美術課上畫了很多不同的東西。

The students play different games at the school playground.

學生們在學校遊樂場上玩著不同的遊戲。

The playground has monkey bars for students to hang on.

遊樂場有攀爬架讓學生懸吊。

Jump rope is a good way to stay active and healthy.

跳繩是保持活躍和健康的好方法。

The students enjoy playing jump rope at recess.

課間休息時，學生喜歡玩跳繩。