到底在干嘛

what on earth are you doing?

→ 到底
phrase Rare #21,510
what on earth are you doing? A colloquial, emphatic way to ask what someone is doing, often expressing confusion, impatience, or annoyance. Often used with 你 or 他/她.
CH: 你到底在干嘛?快来帮忙!
EN: What on earth are you doing? Come help!

到底在干嘛

What the hell are you doing?

— 海角七号 (2008)

那些小孩到底在干嘛

What on earth are those kids doing?

— 杀人回忆 (2003)

到底在干嘛

What on earth are you doing?

— 妈咪 (2014)

宾杜到底在干嘛

Bindu, what on earth are you doing?

— 触不可及 (2011)

你们到底在干嘛

What on earth are you doing?

— 烈日灼人 (1994)

臭小子到底在干嘛

You brat, what on earth is he doing?

— 寄生虫 (2019)