1·The slaughter of whales is unnecessary and inhuman.
对鲸的屠宰是不必要且不人道的。
—— 《柯林斯英汉双解大词典》
2·There could be a serious loss of efficiency through unnecessary duplication of resources.
不必要的资源重复会导致严重的效率损耗。
—— 《柯林斯英汉双解大词典》
3·He found it unnecessary for us to stay behind.
他感到我们不必要留下来。
—— 《新英汉大辞典》
4·We should trim off the unnecessary parts of our spending.
我们应该削减不必要的开销。
5·One of the biggest myths in the last year is that social media experts make PR obsolete and unnecessary.
在过去一年中，最大的神话之一是社交媒体专家使公共关系过时和不必要。
1·That last comment was a little unnecessary, wasn't it?
那最后一点评论有点多余，不是吗？
—— 《牛津词典》
2·Will men become increasingly feminine and unnecessary?
男性日益女性化，越来越多余？
3·However, take note: Using frameworks involves a learning curve and can bulk up your web page sizes with unnecessary style rules and markup.
但另一方面：使用框架会增加学习成本并且会产生多余的样式和标记代码，最终导致网页代码冗余。
4·That, combined with ignorance about precisely how much the unnecessary use of antibiotics contributes to increasing resistance, makes restriction highly controversial.
加上不清楚多余使用会在哪种程度上导致抗药性都使得限制使用变得备受争议。
5·Nick Reilly, who heads GM’s international operations, says that part of the answer is to adopt low-cost manufacturing techniques and not to load cheap cars with unnecessary technology.
GM全球负责人Nick Reilly认为盈利的方法就是采取低成本的制造工艺，减少在低端车上多余技术的应用。
1·Please, Mary, this is all so unnecessary.
求你了，玛丽，这一切根本没有必要。
—— 《柯林斯英汉双解大词典》
2·Many school have strict restrictions on students' clothes, which I think is unnecessary.
许多学校对于学生的穿着有着非常严格的限制，我认为这是没有必要的。
3·I think it was totally unnecessary; it should have been avoided rather than costing all the people trouble because there's been a lot of traffic and disruptions all over.
她说她烦透了。她说：“我认为这完全没有必要，它应该是可以避免的，而不是给所有人造成麻烦，现在到处都是交通拥挤，混乱不堪。”
4·Sure, those things are great, but they're only better if you believe they're better, and more importantly, the comparison is totally unnecessary.
当然，这些事情是非常美好的，但是它们之所以美好是因为你认为如此。更重要的是，这种比较是完全没有必要的。
5·Unnecessary miscommunication. - say what you mean. Mean what you say. Speak clearly. Ask questions. Clarify things until you understand them.
没有必要的误解-说你要表达的意思。清晰的表达。提出问题。把事物分类直到你能理解他们。