Hexanedinitrile
[建] 己二
🗣️ 情景例句
Remember our first fishing trip?
还记得我们第一次去钓鱼吗？
How wide is this bridge?
这座桥有多宽？
But we won't have our big family get-together until Christmas.
但我们要等到圣诞节才会有家庭大团圆。