Polyether
n. [化]聚醚,多醚
??? 情景例句
I beg you pardon?
對不起，你說什么？
His classical music is so quiet. I can't even hear it!
他的古典音樂幽靜得聽不見。
However, size and strength are not the only important things about this bridge.
然而，這座橋重要特點不僅是它的規(guī)模與強度。