2 sentences

1. 这篇文章里有一些语病。

   zhè piān wén​zhāng lǐ yǒu yī​xiē yǔ​bìng.

   There are some grammatical errors in this article.

   Source: Dong Chinese Dictionary

2. 这处语病比较隐蔽，不仔细看的话很难发现。

   zhè chù yǔ​bìng bǐ​jiào yǐn​bì, bù zǐ​xì kàn de​huà hěn nán fā​xiàn.

   This grammatical error is quite subtle; it's hard to spot if you don't look closely.

   Source: Dong Chinese Dictionary