Meaning of dǎ duàn:
dǎ duàn
打断
Verb
to interrupt; to break off; to break (a bone)
Lǎoshī zài wǒ shuōhuà shí méiyǒu dǎduàn wǒ.
老师在我说话时没有打断我。
The teacher didn't interrupt me while I was speaking.
Qǐng bùyào suíbiàn dǎduàn biérén shuōhuà.
请不要随便打断别人说话。
Please don't interrupt others while they are speaking.
Tā zài tī zúqiú shí bù xiǎoxīn dǎ duàn le tuǐ.
他在踢足球时不小心打断了腿。
He accidentally broke his leg while playing soccer.