opinion
/əˈpɪnjən/noun
1- a view or judgement formed about something, not necessarily based on fact or knowledge意见; 见解：
I'm writing to voice my opinion on an issue of great importance
我要写明对一个极其重要的问题的看法
that, in my opinion, is dead right.
据我看, 那绝对正确。
1.1
- mass noun the beliefs or views of a large number or majority of people about a particular thing舆论：
the changing climate of opinion.
正在变化的舆论氛围。
1.2
opinion of
an estimation of the quality or worth of someone or something评价：I had a higher opinion of myself than I deserved.
我曾自视过高。
1.3
- a formal statement of advice by an expert on a professional matter（正式的）专家意见; 鉴定：
if in doubt, get a second opinion.
如有怀疑, 就再请专家鉴定一次。
1.4
- Law a formal statement of reasons for a judgement given【律】（作为判案依据的）理由。
1.5
- Law a barrister's advice on the merits of a case【律】（律师关于案情是非曲直的）意见。
短语
be of the opinion that
- believe or maintain that认为。
a matter of opinion
- something not capable of being proven either way看法因人而异的问题。
词源
Middle English: via Old French from Latin opinio（n-）， from the stem of opinari 'think, believe'.