1、promise
承诺；保证；答应
The post office has promised to resume first class mail delivery to the area on Friday.
邮局承诺于星期五恢复对这个地区第一类邮件的递送。
He had promised that the rich and privileged would no longer get preferential treatment.
他已经保证富人和特权阶层不会再得到优惠待遇。
答应给予；承诺给予；保证让…得到
In 1920 the great powers promised them an independent state.
1920年，列强承诺让他们成为一个独立的国家。
The officers promise a return to multiparty rule.
这些官员承诺恢复多党统治。
诺言；承诺；保证
If you make a promise, you should keep it.
如果做出了承诺，就应该遵守。
The program has lived up to its promise to promote family welfare.
这个项目恪守了其改善家庭福利的承诺。
2、positive
抱有希望的；有信心的；积极的
Be positive about your future and get on with living a normal life.
要对自己的未来充满信心，继续过一种正常的生活。
Her husband became much more positive and was soon back in full-time employment.
她丈夫自信大增，不久便重新开始全职工作。
愉悦的；有益的
The parting from his sister had a positive effect on John.
和姐姐分开对约翰来说有好处。
Working abroad should be an exciting and positive experience for all concerned.
在海外工作对所有相关人员来说都应该是一段让人兴奋而愉快的经历。
明确的；果断的
There are positive changes that should be implemented in the rearing of animals.
应该对动物饲养进行明确的改革。
He was expected to make a very positive contribution to the 1996 Games organisation.
人们期待他为1996年奥运会的组织做出积极的贡献。