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'd stay if they promoted me, But I can't see that happening.
假如他们提升我，我就留下来，但我看那是不可能的。
I agree.
我也这么想。
Sometimes were go upstream to a favourite backwater, sometimes we have our party at the boathouse,
有时，我们溯流而上来到我们喜爱的回水河汊举办；有时在船坞举办。