4 sentences

1. 我不懂这些记号。

   wǒ bù​dǒng zhè​xiē jì​hao.

   I do not understand these markings.

   Source: OpenSubtitles

2. 如果你在卡片上做了记号呢？

   rú​guǒ nǐ zài kǎ​piàn shang zuò le jì​hao ne?

   What if you marked the cards?

   Source: OpenSubtitles

3. 古希腊人可能曾经在蛋糕上做十字形记号。

   gǔ​xī​là rén kě​néng céng​jīng zài dàn​gāo shang zuò shí​zì​xíng jì​hao.

   The ancient Greeks may have marked cakes with a cross.

   Source: CCMatrix

4. 第五页上的一个红色铅笔记号引起了他的注意。

   dì​wǔ yè shang de yī​ge hóng​sè qiān​bǐ jì​hao yǐn​qǐ le tā de zhù​yì.

   A red pencil-mark on the fifth page caught his eye.

   Source: CCMatrix