●同意

◎知道了。 I understand. 
*“理解了”。 
I can't go today. (今天我不能去。) 
I don't understand. (不能理解。) 
= I get it.

◎明白了吗? See? *see “明白”、“知道”。 
= Do you see? 
= Do you understand? 
= Do you get it?

◎完全明白。 I understand very well. 
Do you understand? (明白了吗?)

◎我想我懂了。 I think I understand.

◎我明白你说的了。 I see what you mean.

◎我太清楚那种事了。 I know that too well.

◎我明白你的意思。 I see your point. 
I think we need to expand. (我认为我们必须再扩展。) 
= I see what you mean. 
= I understand what you mean. 
= That makes sense. 
= I get the point.

◎噢，我终于明白了。 I get it.