Upgrading hydrocarbon
[化] 改质烃
🧩 词语组成解析
v. 升级；提高品位（upgrade的现在分词）
🗣️ 情景例句
I'll make new friends wherever we are as long as we're together.
只要我们能在一起， 无论在哪儿我都能交到新朋友。
It's up to you.
一切由你决定。
Have you cleared your luggage with customs?
你的行李通关了吗？