Perfectly/totally understandable
今天路上太堵了,遲到幾分鐘沒事。
It’s understandable that you are several minutes late. There is a lot of traffic today.
這次考試出奇的難肉盹,所以你們考的分?jǐn)?shù)不高可以理解俺陋。
The exam is surprisingly difficult, so it’s totally understandable that your scores were low.