adjective确定,肯定;有把握的,无疑的;肯定的;(不指明人或事物)某个,某些;肯定,无疑;确保,弄清楚
adjectivesure about something; without any doubt
adjectiveused to describe something that you are sure is true or will happen
adjectiveused for talking about a particular thing or person without saying what or who they are
adjectivewithout any doubt
adjectiveto check something so that you are sure about it