OFFICIAL: And talking of bands, I'm sure I don't need to tell you this, but you must make sure that no one fiddles about with the black box by the fire door - that's a system that cuts in when the volume reaches a certain level.
adj. for sure：确定地；肯定地；毫无疑问
We don't know what happened for sure.
One thing's for sure, his vocal style hasn't changed much.
I don't know for sure.
adj. sure enough：果然；果真
And, sure enough, the sun was starting to come up.
adj. to be sure of sth：确定会…；无疑会…；对…有信心
They're sure of success.
adj. to be sure of yourself：自信；充满信心
Victor was so confident, so sure of himself.
adj. to be sure to do sth;to be sure and do sth：一定要做某事；务必要做某事
Be sure and shut the door.
I told him to be sure to shut the door.
Be sure you get your daily quota of calcium.
adj. to be sure to do sth：必定会做某事；一定会做某事
I'm sure to forget.
Public disgrace and infamy would be sure to follow.
adj. to be sure：诚然；固然；无可否认
Parents make the rules. To be sure, many of the rules are no longer appropriate today.
adj. to make sure (that) … ：设法确保…；查明…；核实…；弄清楚…
Make sure that you follow the instructions carefully.
I'm going to make sure the door's locked.
We watched the baby to make sure that she was asleep.
His aching shoulder was a sure sign of rain.
She has a sure grasp of social issues.
Are you sure?
I'm not sure.
How could he be so sure?
Are you sure you're all right?
It is impossible to be sure about the value of land.
Something had gone wrong, he was sure of it.
She was no longer sure how she felt about him.
I'm not sure why he said that.
I'm not sure when they first met.
These shoes provide surer footing and greater confidence.
Can I go with you? – sure.
That sure is pretty.
It sure looks that way.