3 sentences for 勢 (shì — momentum)

1. 我军以排山倒海之势压倒了敌人。

   wǒ jūn yǐ pái​shān​dǎo​hǎi zhī shì yā​dǎo le dí​rén.

   Our army overwhelmed the enemy with the force of a mountain toppling or a sea surging.

   Source: Dong Chinese Dictionary

2. 河水暴涨，水势汹涌，已经漫过了两岸的堤防。

   hé​shuǐ bào​zhǎng, shuǐ shì xiōng​yǒng, yǐ​jīng màn​guò le liǎng àn de dī​fáng.

   The river rose sharply and the current was turbulent, overflowing the dikes on both banks.

   Source: Dong Chinese Dictionary

3. 这支球队以秋风扫落叶之势横扫了所有对手。

   zhè zhī qiú​duì yǐ qiū​fēng sǎo luò​yè zhī shì héng​sǎo le suǒ​yǒu duì​shǒu.

   The team swept through all their opponents with overwhelming force.

   Source: Dong Chinese Dictionary