2 sentences

1. 这种新型喷气式飞机的速度非常快。

   zhè zhǒng xīn​xíng pēn​qì​shì fēi​jī de sù​dù fēi​cháng kuài.

   This new type of jet plane is extremely fast.

   Source: Dong Chinese Dictionary

2. 喷气式飞机利用向后喷射气体来获得动力。

   pēn​qì​shì fēi​jī lì​yòng xiàng hòu pēn​shè qì​tǐ lái huò​dé dòng​lì.

   Jet aircraft use the backward ejection of gas for power.

   Source: Dong Chinese Dictionary