Definition
When a surprising or unpleasant fact or concept sinks in, you slowly begin to understand, accept, or comprehend its impact on you.
（事實或想法）慢慢地被徹底理解，被完全感知
When she heard the bad news, she couldn't believe it at first, but after a few hours, the reality began to sink in.
當她聽到壞消息時，她一開始無法相信，但幾個小時後，現實開始慢慢浮現。
The concept was complex for the students, but after several discussions in class, it eventually began to sink in.
這個概念對學生來說很複雜，但在課堂上經過幾次討論後，他們終於開始理解。
The mistakes he made became clearer, and as he started to reflect on his actions, the consequences began to sink in.
他犯的錯誤變得更加清晰，當他開始反思自己的行為時，後果也逐漸浮現。