Witcogum
甘油酯弹性体
🗣️ 情景例句
It was a pleasure having you. Please come again.
和你在一起我们非常荣幸，请有空常来。
I'm willing to approve your plan.
我愿意批准你的计划。
He was a famous professor of physics.
他是一位著名的物理教授。