You have a big heart！字面意思是“你心也太大了”，实际含义却是表示赞美：“你心太好了”，或者“你心地太善良了”，相当于，You are a kind person。Heart本意是“心脏”，还可以表达“性情；内心；心肠”。 He likes to help other people and he has a very big heart.