no          
 determiner uk/nəʊ/ us/noʊ/
A1 没有,无
not any; not one; not a
  There's no butter left. 没有黄油了。 
 There are no pockets in these trousers. 这些裤子没有裤兜。 
 That's my kind of holiday - no email, no phone, and no worries. 那是我的度假方式——没有电子邮件,没有电话,也没有烦恼。 
 There's no chance (= no possibility) of us getting there by eight. 我们不可能在8点之前到达那里。 
 A2 (用于标牌和布告)不许,禁止
used in signs and on notices to show that something is not allowed
  No smoking/fishing. 禁止吸烟/垂钓 
 - More examples
 - I see no reason for us to depart from our usual practice.
 - I certainly have no desire to have children.
 - The opposition party have been in such disorder for so long that they pose no real threat to the present government.
 - I can see no useful purpose in continuing this conversation.
 - She repeated that she had no intention of standing for president.
 
Idiom   
there's no knowing/telling/sayingidiom  informal 无法预料
it is not possible to know what will happen
  She's very unpredictable, so there's no knowing how she'll react to the news. 她很让人捉摸不透,所以说不准她对这一消息会作何反应。 
 no  
 adverb uk/nəʊ/ us/noʊ/
  (NEGATIVE ANSWER)      
 A1 (用于给出否定回答)不,不是
used to give negative answers
  "Did you feed the cat?" "No, I forgot." “你喂猫了吗?”“没有,我忘了。” 
 "Would you like any more cake?" "No, thank you." “你想再来点蛋糕吗?”“不用,谢谢。” 
 "Do you have any homework tonight?" "No." “你今晚有作业吗?”“没有。” 
 - More examples
 - "Would you like another drink?" "I wouldn't say no."
 - The offer was so good that I couldn't say no .
 - "Must I sign this?" "No, there's no need."
 - He made it impossible for me to say no.
 - "Was it wrong of me to go to the police?" "Oh no, I'm sure you did the right thing."
 
  (NOT)      
B1 并不;毫不
not; not any
  The exam is no more difficult than the tests you've been doing in class. 这次考试并不比你们一直做的课堂测验难。 
 The issues are of no great interest (= only a little interest) to me. 我对这些问题不大感兴趣。 
 - More examples
 - He's in no condition to drive home.
 - It's an issue we'll have to confront at some point, no matter how unpleasant it is.
 - She could no longer contain her anger and shouted at him uncontrollably.
 - Now aged 42, he is no longer considered a serious contender for the title.
 - His work is no longer protected by copyright.
 
no          
noun [ C ] uk/nəʊ/ us/noʊ/  noes
 否定;拒绝
a negative answer or reaction
  "Did you get any replies about the camping weekend?" "So far we have two yeses, a no, and a maybe." “关于周末露营,你得到甚么反馈了吗?” “到目前为止,有两人愿意去,一人不去还有一人不确定。” 
  投反对票者;反对票
a vote against a suggestion, idea, law, etc., or a person who votes no
  14 ayes to 169 noes - the noes have it (= have won). 14票赞成,169票反对——反对方胜出。 
 Compare: aye adverb