She tried to be more positive about her new job.
她力求对新工作更有信心。
It will require positive action by all in the industry.
这将需要业内全体同人和衷共济。
Some of the studies show positive results, whereas others do not.
有一些研究结果令人满意，然而其他的则不然。
She was positive that he'd been there.
她确信他曾在场。
He made a very positive contribution to the success of the project.
他对项目的成功贡献良多。
