2 sentences

1. 请不要随便打岔。

   qǐng bú​yào suí​biàn dǎ​chà.

   Please don't interrupt.

   Source: Dong Chinese Dictionary

2. 请不要随便打岔，让老师把话说完。

   qǐng bù yào suí​biàn dǎ​chà, ràng lǎo​shī bǎ huà shuō wán.

   Please don't interrupt; let the teacher finish speaking.

   Source: Dong Chinese Dictionary