2 sentences

1. 血压正是它听起来的样子：你血管里的压力。

   xuè​yā zhèng​shì tā tīng qǐ​lai de yàng​zi: nǐ xuè​guǎn li de yā​lì.

   Blood pressure is exactly what it sounds like: the pressure in your blood vessels.

   Source: CCMatrix

2. 我们大多数人都没有意识到我们的血管是一个复杂的系统。

   wǒ​men dà​duō​shù rén dōu méi​yǒu yì​shí dào wǒ​men de xuè​guǎn shì yī​ge fù​zá de xì​tǒng.

   Most of us don’t realize that our blood vessels are a complex system.

   Source: CCMatrix