sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: How do I flip a brand new iPhone 7 Plus for a profit?
 sentence 2: Why students can't succed in made easy after studying there for one year? sentence 1: What exactly does 'Encl.' mean at the bottom of an Application Form?
 sentence 2: What exactly does Wikipedia mean by "form"?
not same meaning
not same meaning
not same meaning