来龙去脉

nòng qīng chu mǒu shì lái lóng qù mài

弄清楚某事来龙去脉

figure out the ins and outs about something

wǒ zhī dào zhè jiàn shì de lái lóng qù mài

我知道这件事的来龙去脉。

I know the ins and outs of the matter.

tā qīng chu zhè ge diǎn gù de lái lóng qù mài

她清楚这个典故的来龙去脉。

She is quite clear about how this classical allusion came into being.

gǎo qīng zhěng gè shì jiàn de lái lóng qù mài

搞清整个事件的来龙去脉

find out the details of the whole event

qǐng nǐ bǎ gù shi de lái lóng qù mài gěi wǒ men jiǎng yī biàn

请你把故事的来龙去脉给我们讲一遍。

Please tell us the whole story from beginning to end.

tā xū yào yī fèn guān yú shì qing lái lóng qù mài de bào gào

他需要一份关于事情来龙去脉的报告。

He wanted a blow-by-blow account of what happened.

tā hòu lái hěn nán huí yì qǐ shì jiàn de lái lóng qù mài

他后来很难回忆起事件的来龙去脉。

He had trouble afterward recalling the sequence of events.

zhè ge wèn tí de lái lóng qù mài

这个问题的来龙去脉

the ins and outs of this problem