Desmodur
聚氨基甲酸酯类粘结剂
🗣️ 情景例句
You sound excited about Columbia.
听起来你对Columbia大学跃跃欲试。
It's a beautiful country with many large lakes.
它是一个有许多大湖的美丽的国家。
What are you doing?
你在干什么？