Quadrol
乙二胺
🗣️ 情景例句
Building a city can be a disaster for the environment.
新建一个城市对于环境来说可能是一场灾难。
That was my last one, too.
那可是我最后额财产了。
Is this your first visit to our showroom.
您是第一次到我们展示室来的吧。