Confederating
v. 联合, 结盟（confederate的现在分词形式）
🗣️ 情景例句
What are you up to?
你在忙些什么？
Mr. Smith is still in his forties.
史密斯先生才四十几岁。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。