ADJ [usually ADJ n]（争论、案件等）容易裁决（或解决）的，一目了然的 If you describe a dispute or a legal case as open-and-shut, you mean that is easily decided or solved because the facts are very clear. （争论、案件等）容易裁决（或解决）的，一目了然的
It's an open and shut case. The hospital is at fault.
这件事一目了然，责任在医院一方。
...an open-and-shut murder charge.
事实清楚的谋杀指控
SYN straightforward [British], simple, obvious, routine