Copolyether
共聚多醚
🗣️ 情景例句
She was caught in the branches of our tree.
被我们家树上的树枝夹住了。
For one thing,I've got to drop by the bank to get some money.
首先，我得去银行取一些钱。
the main complicating facts of human life must remain unintelligible.
我们才能明白人类生活中主要的复杂现象。