1 sentence for 來回 (lái​huí — repeatedly)

1. 你的手指似乎在两个位置之间来回移动。

   nǐ de shǒu​zhǐ sì​hū zài liǎng ge wèi​zhi zhī​jiān lái​huí yí​dòng.

   Your finger seems to jump back and forth between two positions.

   Source: UM-Corpus: News