A：In my opinions, someone else has caused the fire of this house.
我的意见是，人故意放火烧了这所房子。
B：Who do you think that has the motive?
你认为谁会有这样的动机呢?
A：I’m not sure now. In any case, let’s first make some careful investigations.
我现在还不能肯定。无论如何，让我们做一些认真的调查。
B：OK, murder will out!
好的，事情总会水落石出。
A：Yeah.
就是。