cautious optimism是什么意思

cautious optimism是什么意思 cautious的名词是什么? cautious是什么意思 cautious references choose optimism是什么意思 英语翻译U.S.health officials are expressing cautious optimism the virus causing swine flu A-H1N1 may not be as virulent as initially feared,but they say aggressive steps to combat the infectious disease are still warranted.怎么翻译的流畅 cautious啥意思? breath west-coast optimism 翻译!谢谢～ temper their optimism with caution什么意思 翻译 She is cautious of telling secrets. Other scientists are impressed but cautious. talk mixed up with optimism and confusion=talk spicewith optimism and confusion talk mixed up with optimism and confusion=talk spicedwith optimism and confusion my understanding of optimism 英语作文在考试 They would be a little bit more cautious overall~ Be cautious about 还是of 都一样吗 enthusiastic、cautious、reject这三个单词的名词形式 cautious从哪个单词 引申过来的啊?