Definition: when you know all of the facts about something or about how it works Level: C2
他对这个地区有深入的了解。
He has ___an ___intimate ___knowledge ___of the area.
辛克莱对荒野知识有深入的了解。
Sinclair has ___an ___intimate ___knowledge ___of wilderness lore.
她对发动机的工作原理有深入的理解。
She has ___an ___intimate ___understanding ___of how the engine works.
