2 sentences

1. 这句话是一个让步状语从句。

   zhè jù huà shì yī gè ràng​bù zhuàng​yǔ cóng​jù.

   This sentence is a concessive clause.

   Source: Dong Chinese Dictionary

2. 在语法分析中，我们要学会区分主句和从句。

   zài yǔ​fǎ fēn​xī zhōng, wǒ​men yào xué​huì qū​fēn zhǔ​jù hé cóng​jù.

   In grammatical analysis, we must learn to distinguish between main clauses and subordinate clauses.

   Source: Dong Chinese Dictionary