Tutane
氨丁烷
🗣️ 情景例句
Have you ever been to a buffet dinner?
你去吃过自助餐吗？
A true friend is known in the day of adversity.
疾风知劲草，患难知友情。
The weather was very cold, and many people were ill.
天气非常冷，很多人生了病。