Pneumocoptidae
鼠肺螨科
🗣️ 情景例句
He is behind the rest of the class in reading.
他在阅读方面不如班上的其他同学。
When did you do homework?
你什么时候做家庭作业？
When are you going to have a holiday, Sam?
萨姆，你准备什么时候去度假？