sure基本解释
adj,确信的；可靠的；必定的,同近
‘That’s Sarah’s cousin.’ ‘Are you sure?’.“那是萨拉的表妹。”“你肯定吗？”
确信的；可靠的；必定的英释中释adjconfident that you know something or that something is true or correct
make sure,确信；证实.短语
