be certain of

v.

确信；

How can we be certain who authors really are? Why ORCID is important to the British Journal of Dermatology
Serial extraction: Stop, look, and be certain ☆
Can we be certain of PRO accuracy and accountability? Inaccurate "report cards"generated by medicare claims data as a marker for la...
Be Certain of How-to before Mining Uncertain Data
Be certain of how-to before mining uncertain data
Can we be certain of the law on adolescent's rights?
Can we be certain of the law on adolescent's rights?
[Migraine and hormones: what can we be certain of?]
Tube Bosses Cannot Be Certain of Central Line Safety, Warns Inquiry
Can we ever be certain of the diagnosis of acute pancreatitis?