Ketene (di)acetal
[化] 乙烯酮縮二乙醇
?? 詞語組成解析
n. [化] 乙烯酮, 烯酮
??? 情景例句
Right.
好的。
You're very kind to take the trouble to help me.
謝謝你不怕麻煩幫助我。
But this phase of our development is now finished.
但這個發展階段已經結束。