以上来源于: WordNet
Air Travel: the first jet airliner, the Boeing 707, was introduced in 1959.
1959年,波音707,第一架喷气式飞机问世。
The Boeing 707 took off again, exploded in flight, and 104 passengers and 11 crew were killed.
波音707飞机再次起飞,并在飞行时发生爆炸,104名乘客和11名机组人员全部遇难。
When Boeing 707 jets came along, airlines went deep into debt to buy them and expand their routes.
自从有了波音707大型喷气式客机,航空公司为了引进这种机型,往往负债累累,只好增加航线。
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