duìbuqǐ
I'm sorry
打扰一下
Excuse me (to interrupt)
打扰 (dǎrǎo) means "to disturb," and 一下 (yíxià) is a softener meaning "a bit." Together it's "disturb a moment," a polite way to interrupt.
打扰
dǎrǎo
to disturb — Shorter and less polite; often used to apologize for interrupting.
请问
qǐngwèn
May I ask...? — More formal and polite; used before asking a question.
不好意思
bù hǎo yì si
Excuse me / Sorry — More casual apology; also used to get attention or express mild embarrassment.
打扰一下,你能帮我吗?
dǎrǎo yíxià, nǐ néng bāng wǒ ma?
Excuse me, can you help me?
当然可以!
dāngrán kěyǐ!
Of course!
Appropriate
Avoid when
You can say 打扰一下 (dǎrǎo yíxià) to politely get someone's attention or interrupt.
It is pronounced dǎrǎo yíxià. Note that 一 changes to the second tone before the fourth tone.
Use 打扰一下 when you need to interrupt or get attention, while 请问 is more formal and used directly before asking a question.
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