His relaxed exterior hides an extremely acute mind.他表面上大大咧咧，内心却无比敏锐。He strolled cheekily past the commissionaires for a free wash in the gentlemen's cloakroom.他大大咧咧地从门卫眼前走了过去，没花钱就在男洗手间冲洗了一把。Incautiously, Crook had asked where she was.克鲁克大大咧咧地问她人在什么地方。