positive的同义词有optimistic，confident，hopeful；positive的反义词是negative。positive指积极的、良好的或有所助益的。例句：We must take positive steps to deal with the problem.
positive例句
This contract is advantageous to the owners.
这份合同对业主有利。
You&39;d better be more cautious, as your rival is in an advantageous position.
你的对手现在处于有利地位，所以你最好更谨慎一些。
Overseas investment has had a positive effect on exports.
海外投资对出口有积极影响。
The agreement should have very positive results in the long term
从长远来看，这个协议将会产生非常积极的影响。
His family have been a very positive influence on him.
他的家庭对他有十分良好的影响。
She tried to be more positive about her new job.
她力求对新工作更有信心。
