Redbud
n. 紫荆, 美国紫荆
🗣️ 情景例句
What do you mean?
是什么意思？
Times have changed.
此一时也，彼一时也。
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。