Silly,foolish or stupid or ridiculous, the opposite of serious.愚蠢的，麻木的，可笑的反义词是严肃的
He's being silly, so we should just ignore him.他在犯傻因此我们应该忽略他
That's a silly idea, so I don't think she means what she's saying.那是一个愚蠢的主意，因此我认为她说的不是真的
That kind of silly behavior isn’t acceptable in our office.在我们办公室那种愚蠢的行为是不能接受的
Amazing,to be incredible or so good as to be hard to believe, the opposite of ordinary.太惊讶了，难以置信，好的很难相信，反义词是普通的
That company's new products are truly amazing.那个公司的产品真的很棒
She gave an amazing performance, especially after all the difficulties she had overcome.她呈现了一个很精彩的表演，尤其在克服了所有困难之后
He was in a terrible accident, so it’s amazing that he is still alive.他遭遇了一场可怕的事故，所以他仍然活着太令人吃惊了
It will be an amazing accomplishment if they can finish the project on schedule.这将是一个惊人的成就，如果他们能准时完成这个项目
Crucial, to be of extreme importance or a central part, the opposite of optional.重要的，极其重要或中心部分，相反的是可选的
It's crucial that we get them to sign the contract by the end of the week.在这个周末我们与他们签订合同是至关重要的
Getting that data is crucial for our success.得到那个数据对我们的成功很重要
It’s crucial that airline pilots get enough sleep before the fly.飞行员起飞前得到充足的睡眠是很重要的
We need her help because she has unique skills that are crucial for the success of our project.我们需要她的帮助因为她有独特的技能，这对我们项目成功至关重要
Impressive,to stand out and be unforgettable in a good way.令人钦佩的，用一种方法脱颖而出和令人难忘的
His presentation was so impressive that we decided to hire him right away.他的展示太令人印象深刻，我们决定立刻雇佣他
They have an impressive website, but the quality of their products is pathetic.他们有一个令人印象深刻的网站，但是他们的产品质量很差
She impressed everyone with her powerful speech, but we were soon disappointed by her inability to meet her goals.它用她强有力的演讲使每个人印象深刻，但是我们很快对她没有能力实现她的目标而失望
Realistic,to be possible and attainable.现实的，可能的和可得到的
That deadline isn't realistic, so we need to ask for more time.这个期限不现实，因为我们需要寻求更多的时间
He isn't being realistic when he expects to charge such high prices for his products.当他期盼对他的产品收取如此高的价格，他是不现实的
Their company failed because their sales projections were unrealistic and their expenses were way too high.他们的公司失败了，因为他们的销售规划不现实而且他们的费用太高
It's ok for you to have high expectations, but they need to be realistic or you'll fail.对你有一个很高的期盼是好的，但它们需要现实的否则会失败的
That kind of silly behavior isn't acceptable in our office.
She has an amazing voice, so I love to listen to her sing.
He expects people to laugh when he's being silly, but I don't think it's funny.
We can't do this without her help, so it's crucial that you get them to cooperate.
