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
it's a graduation party for me.
这是为我毕业所办的派对。
I am pleased to say that we will be able to deliver the transport facilities you require.
很高兴告诉您你方要求的运输设备我方可以发货。
Wu dropped his stick! He stopped to get it and of course fell behind.
吴的接力棒掉地了！他停下捡棒，当然就落后了。