Polyesterification
n. 聚酯
🗣️ 情景例句
And am I glad to see you!
我看见你才高兴呢！
Is the departure time on schedule?
起飞时间准时吗？
OK, said Jim. We can have some for our picnic lunch.
“好，”吉姆说，“我们午餐可以吃点香蕉。”