愉悦口语:第789期 来龙去脉英文怎么说

讲解文本：

the ins and outs 复杂细节，前前后后，来龙去脉
Mike knows the ins and outs of the city.
麦克对这座城市了如指掌。
Be sure to understand the ins and outs of the platform.
一定要对这个平台有彻底的理解。

疯狂练习吧！