1 sentence

1. 他有咬手指甲的习惯，但是我认为他长大就不会了。

   tā yǒu yǎo shǒu​zhǐ​jia de xí​guàn, dàn​shì wǒ rèn​wéi tā zhǎng dà jiù bù​huì le.

   He has a habit of biting his fingernails, but I think he will grow out of it.

   Source: UM-Corpus: Education