Goldmining
(goldmine 的现在分词) n. 金矿, 成功的企业, 赢得巨利的活动
🗣️ 情景例句
My head is killing me.
我的头疼死了。
She is very well, thank you.
她很好，谢谢。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，