释义：
I can tell you... 可以说……也是……
比起对某事实给予断言，不如加上 I can('t) tell you that 的包装，委婉地传达自己的意向。不过 I can('t) tell you what (how) 等则表示“我（不）可以告诉你某事”。经常会用到 I can('t) tell you that （可以那么说）的句型。
例句：
I can tell you that the prices of cars are a bit high.
我跟你说，汽车的价格有点高。
I can tell you what he's going to find.
我可以告诉你他会找到什么。
I can't tell you how sorry I am.
真不知道怎么表达我的歉意。
对话：
A: I really need to make some money fast.
我非常需要一些救济的钱。
B: I can't tell you how to make money.
我可不能告诉你怎么赚钱。
