2 sentences

1. 这个飞行联队由数十架战斗机组成。

   zhè​gè fēi​xíng lián​duì yóu shù shí jià zhàn​dòu​jī zǔ​chéng.

   This flight wing consists of dozens of fighter jets.

   Source: Dong Chinese Dictionary

2. 南北韩曾多次组建联队参加国际体育赛事。

   nán běi Hán céng duō cì zǔ​jiàn lián​duì cān​jiā guó​jì tǐ​yù sài​shì.

   North and South Korea have formed joint teams many times to participate in international sporting events.

   Source: Dong Chinese Dictionary