Polybond
聚硫橡胶粘合剂
🗣️ 情景例句
Hi, gang. Hi, everybody.
嗨 ，各位。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
But wouldn't you like to spend an extra day or two here?
你们不愿意在北京多待一天吗？