3 sentences

1. 这种流线型设计可以减少空气阻力。

   zhè zhǒng liú​xiàn​xíng shè​jì kě​yǐ jiǎn​shǎo kōng​qì zǔ​lì.

   This streamlined design helps reduce air resistance.

   Source: Dong Chinese Dictionary

2. 这种新设计可以有效减小空气阻力。

   zhè zhǒng xīn shè​jì kě​yǐ yǒu​xiào jiǎn​xiǎo kōng​qì zǔ​lì.

   This new design can effectively reduce air resistance.

   Source: Dong Chinese Dictionary

3. 这项新政策在实施过程中遇到了巨大的阻力。

   zhè xiàng xīn zhèng​cè zài shí​shī guò​chéng zhōng yù​dào le jù​dà de zǔ​lì.

   The implementation of this new policy encountered significant resistance.

   Source: Dong Chinese Dictionary