Those things were nice, but not necessary.
那些事情确实很不错，但不是工作所必须的。
Familiarity with the following is also helpful, but not necessary.
熟悉以下内容有助于您理解本篇教程，但不是必需的。
A depth finder is useful to locate structure, but not necessary.
找到结构，很有用，但不是需要深度仪。
Words in brackets are optional - they are correct, but not necessary.
括号内的词是可选的-他们是正确的，但没有必要的。
It was nice to have the traditional battlegrounds, but not necessary.
能攻下传统主战场当然好，但已并不是必要。
We are evacuating the city. Exact change is appreciated, but not necessary.
他们正从他们的最后的都城撤退，准备上山，那里我是不能去的。
Vascularized bone transplantation is an ideal method, but not necessary in all patients.
血管化骨移植是理想的修复方法，但并非适合所有患者。
The doctors will operate if necessary—but it may not come to that.
必要时医生会施行手术，但也许还不致如此。
Team spirit is necessary not only for a team's success but also for personal development.
团队精神不仅对一个团队的成功是必要的，而且对个人发展来说也是必要的。
Yet that is a necessary but not sufficient condition for its success.
然而，对于它的成功来说，这是一个必要条件，但不是充分条件。
But as Hollywood movies have taught us, this is not necessary.
而在好莱坞电影中，这些话显然都不必要。
We can get you a sunrise over the sea, if necessary, but not a sunset.
需要的话，我们能为您拍到海上日出，但日落不行。
The tools that could be taught in the classroom may be necessary, but not sufficient.
课堂上可以讲授的工具,是必要的，但不充分。
You mean a necessary condition but not sufficient.
你是说经历伙伴之爱是必要但不充分条件。
The truth is that it’s not something that’s necessary for everyone – but if it is necessary, you need to set aside a bit of time to get it done.
事实上并非每个人都需要——但如果有必要，你应该花点时间来处理下。
A certain degree of speculation should not only be allowed but also necessary.
一定程度的房地产投机不但应该允许，而且是必要的。
These last few ideals are not necessary, but would be great.
这些最后的理想不是必须的，但是有的话更好。
This is not strictly necessary, but it is safer.
严格地来说，这是不是必须的，但这更为安全。
Texting and telephoning may be necessary in modern friendship, but alone, they are not sufficient.
在现时代的友谊中，文字和电话也许是必要的，但仅此还不够。
Identity is not necessary, but contingent, as the philosophers put it.
同一性不是必然的，而是偶然的，就像哲学家们常说的。
But they were not strictly necessary.
但是这些并不是完全必要的。
Specific knowledge of JMS is not necessary but helpful.
JMS的专门知识不是必需的，但会有帮助。
Profit was viewed as necessary, but not sufficient, to justify everything Apple did.
盈利被视为必要的，但还不够证明苹果所要做的是对的。
But legal training is not a necessary condition for good relationships.
但是法律训练不是良好人际关系的必要条件。
This may not be necessary, but we always like doing a full build before deploying.
这可能没有必要，但我们总是喜欢在部署前进行整体构建。
It's not necessary to do that, but it can be quite convenient.
虽然没有必要这样做，但是这样做是很方便的。
It is not too late to turn this situation around, but immediate action is necessary.
何时扭转局势都不晚，但是立即行动是必不可少的。
It is not too late to turn this situation around, but immediate action is necessary.
何时扭转局势都不晚，但是立即行动是必不可少的。
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