2 sentences for 分子 (fēn​zǐ — molecule)

1. 水的实际分子每毫秒变化一次，但这种模式持续数小时甚至数年。

   shuǐ de shí​jì fēn​zǐ měi háo​miǎo biàn​huà yī​cì, dàn zhè​zhǒng mó​shì chí​xù shù​xiǎo​shí shèn​zhì shù nián.

   The actual molecules of water change every millisecond, but the pattern persists for hours or even years.

   Source: CCMatrix

2. 像你的手一样，自然界中的许多分子存在于两个版本中，这两个版本是彼此的镜像。

   xiàng nǐ de shǒu yī​yàng, zì​rán​jiè zhōng de xǔ​duō fēn​zǐ cún​zài yú liǎng​ge bǎn​běn zhōng, zhè liǎng​ge bǎn​běn shì bǐ​cǐ de jìng​xiàng.

   Like your hands, many molecules in nature exist in two versions that are mirror images of each other.

   Source: CCMatrix