Witcogum
甘油酯弹性体
🗣️ 情景例句
It was his first date in two years.
这是他两年来第一次约会。
The industrial area is centered largely in the north.
大部分工业区域集中在北方。
I was doing eighty when I overtook you.
我是以第小时80英里的速度赶上你的。