B-47s
【航空学】一种有六引擎喷气发动机的轰炸机
🗣️ 情景例句
It's not as bad as all that.
事情没有那么糟。
Oh! That's all right.
哦，不要紧。
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。