Polyethers
(polyether 的第三人称 -s形式) n.[化]聚醚,多醚
🗣️ 情景例句
How ofter have met with our competitors?
你多久遭遇我们的竞争对手一次？
He has been working in advertising for ten years, but now he is teaching.
他曾经在广告公司服务十年，但现在在当老师。
This has not been easy because I own over a thousand books.
但这并不容易，因为我有1，000多本书。