Ethocel
[化] 乙基纤维素
🗣️ 情景例句
No, no, you were right. I was wrong.
确实不容易 说对了。我错了。
It's a good thing you reminded me to take my heavy coat.
谢谢你提醒我拿我的厚衣。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。