Pyroelectrics
热电体
🗣️ 情景例句
Crossing the Luohu border is a nightmare on holidays and weekends.
节日或者周未过后边毕业班检查站简直就是场恶梦。
Poverty is apain, but no disgrace.
贫困是痛苦，但不是耻辱。
Did he say what it was about?
他讲了什么事吗？