Chinese phrase
抱歉，打扰了 bào qiàn dá rǎo le
Meaning
sorry to bother you
When to use it
It apologizes for a small interruption or inconvenience. It is polite and often comes before a request or when entering.
Example dialogue
抱歉，打扰了，我可以进来吗？ bào qiàn dá rǎo le wǒ ké yǐ jìn lái ma
Sorry to bother you. May I come in?
没关系，请进。 méi guān xì qǐng jìn
No problem, come in.