Stiburea
脲, 锑尿素
🗣️ 情景例句
Looking at the houses.
看房子。
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
As I was looking for it, the landlord came in.
当我正在寻找时，酒店老板走了进来。