Copolyether
共聚多醚
??? 情景例句
Sorry about the inconvenience.
對不起添麻煩了。
Prepare for a rain day.
未雨綢繆。
There were books, clothing and photographs, together with letters which the seaman had once received from his wife.
其中有書箱、衣服、照片以及水手收到的妻子的來信。