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
Nice day, isn't it?
天儿真不错，你说呢？
She seldom eats breakfase.
她很少吃早餐。
That's why we were getting anxious about you.
所以我们才为你们担心。