Ethocel
[化] 乙基纤维素
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
He is a good friend that speaks well of us behind our backs.
背后说人好话的够朋友。
I'm talking. You are not talking. You're listening to me .
我在说话。你没在说话。你在听我说话。