B1 full of hope and confidence, or giving cause for hope and confidence建设性的;积极的;怀有希望的
More examples
The most important thing is to go into the exam feeling positive.
It's a humbling experience to see people being so positive about life when they have so little.
He has a fairly positive outlook on life.
While claiming to promote positive images of women, advertisers are in fact doing the very opposite.
The UN called on all parties in the conflict to take a positive stance towards the new peace initiative.
B2 certain and without any doubt有把握的,确信的,肯定的
C2 (of a medical test) showing that a person has the disease or condition for which they are being tested(医学检测)呈阳性的
[ before noun ] (used to add force to an expression) complete(用于加强语气)完全的
(of a number or amount) more than zero(数或量)正的
being the type of electrical charge that is carried by protons正电的,正极的
having the rhesus factor in the blood血液中含猕因子的;Rh阳性的
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