B-17s
【航空学】第二次世界大战中使用的一种四引擎中翼轰炸机\\nn. 17's = Flying Fortress
🗣️ 情景例句
But as exporters of a complete plant,
但是，作为成套设备出口商，
Where did you grow up?
你在哪儿长大？
That sounds interesting. That was a hundred years ago, wasn't it?
听起来很有意思。那是一百年前的事了，不是吗？