positive adj.积极的,肯定的...
confident adj.自信的,有信心...
certain adj.确定的,肯定的...
yes adv.是,是的 ; ...
dependable adj.可靠的,可信赖的
reliable adj.可靠的,可信的
definite adj.明确的,一定的...
absolute adj.绝对的,确实的...
decided adj.确定的,坚决的...
certainly adv.当然,一定