是think:I think we're being followed.我认为有人跟踪我们。I think that's sweet, so there.我觉得那很好,就这么定了。Doctors think he will go blind.医生们认为他会失明。I think you are mentally tired.我觉得你的头脑累了。I think we're owed an apology.我认为得有人向我们道歉。