Meaning of bù guǎn:
bù guǎn
不管
Conjunction
not to be concerned; no matter
Bùguǎn tiānqì rúhé, wǒmen dōu huì qù lǚxíng.
不管天气如何,我们都会去旅行。
No matter how the weather is, we will go on the trip.
Bùguǎn tiānqì yǒu duō zāogāo, wǒmen dōu yào qù shàngkè.
不管天气有多糟糕,我们都要去上课。
No matter how bad the weather is, we have to go to class.
Preposition
regardless of
Bùguǎn tiānqì rúhé, wǒmen dōu yào qù páshān.
不管天气如何,我们都要去爬山。
Regardless of the weather, we will go hiking.