Ethocel
[化] 乙基纤维素
🗣️ 情景例句
Thanks for the haircut, keep the change.
谢谢你给我剪头，不用找了。
He is working on a book about the Vietnam War.
他正在写一本关于越战的书。
At the end of this period we put the play on in a theatre.
最后我们就在剧场上演这出戏。