Unsym.-dimethylurea
[化] 不对称二甲脲
🗣️ 情景例句
Marriage is an institution not to be taken lightly.
婚姻是个不能儿戏的体系。
I wonder if it will snow tonight.
我不知道今晚会不会下雪。
New Zealand is an impotant agricultural country with a small population. In size it is bigger than Guangdong Province, yet has a much smaller population.
新西兰是一个人口很少的重要的农业国。新西兰的面积比广东省大，但人口却少得多。