2 sentences

1. 我第一眼就看到刀子。

   wǒ dì​yī yǎn jiù kàn​dào dāo​zi.

   The first thing I saw was the knife.

   Source: OpenSubtitles

2. 他第一眼看到那座城市就爱上了它。

   tā dì​yī yǎn kàn​dào nà zuò chéng​shì jiù ài​shàng le tā.

   He fell in love with that city the first time he saw it.

   Source: Dong Chinese Dictionary