Urethane
[化] 尿烷; 氨基甲酸乙酯; 乌拉坦
🗣️ 情景例句
Fortunately, they returned safely.
说来幸运，他们平安回家了。
Perish the thought
打消念头
In 1860, a better plan was put forward by an Englishman, William Low.
1860年，一位名叫威廉。洛的英国人提出了一项更好的计划。