3 sentences

1. 他挺起胸膛大步向前走。

   tā tǐng​qǐ xiōng táng dà​bù xiàng qián zǒu.

   He puffed out his chest and strode forward.

   Source: Dong Chinese Dictionary

2. 他大步走向办公室。

   tā dà​bù zǒu​xiàng bàn​gōng​shì.

   He strode toward the office.

   Source: Dong Chinese Dictionary

3. 他大步跨越了地上的水坑。

   tā dà​bù kuà​yuè le dì shàng de shuǐ​kēng.

   He strode across the puddle on the ground.

   Source: Dong Chinese Dictionary