Definition
To be confident or certain that something is true.
I'm not sure of finishing this report on time.
She was sure of her answer.
We can’t send out the invitations until we are sure of all the arrangements.
be sure of something
相关词: sure
片语
相关词: sure
片语
To be confident or certain that something is true.
I'm not sure of finishing this report on time.
She was sure of her answer.
We can’t send out the invitations until we are sure of all the arrangements.