1) I mean Business.
我是当真的。
3) Do you really mean it?
说的可是当真?
4) He means what he says, ie is not joking, exaggerating, etc.
他说话是当真的.
5) What I say is true.
我所说的是真的。
6) I know that is true.
我知道那是真的。
参考词条