虽然很难，但是十分必要。
虽然他们付了钱，但我们没必要提供'这种服务'。
虽然没有必要这样做，但是这样做是很方便的。
It's not necessary to do that, but it can be quite convenient.
虽然这会让导师很难管理，但这是必要的。
This becomes difficult for instructors to manage, but it is vital.
虽然有点笨重，但我觉得这个已经没有再设计的必要了。
It does look a little clunky, now, although I still prefer this over the redesign.
虽然舍友来自不同的地方，但是没有必要不进行交流。
Though roommates are from different places, there is no need to stop communicating.
对他来说，坐在橱窗里虽然尴尬，却是必要的一步。
For him, sitting-in represented a necessary, albeit awkward step.
“虽然说并不是必要的，但是不要喷香水。”Sullivan补充说。
"It can't be said enough, but skip the perfume," Sullivan adds.
虽然按照希腊语来说这是可以接受的，但是没有这个必要。
Although that is acceptable in terms of the Greek language, it is not necessary.
虽然问题没有现成的解决方法，但是…。是有帮助的/但是意识到…。的必要性。
There is no immediate solution to the problem of…, but…might be helpful/ but the.
虽然一些建议您可以设置手动不论，它是完全不必要的。
While some suggest you may set this manually regardless, it's completely unnecessary.
虽然它天生是一种胆怯无害的动物，但如果有必要，它也会打架的。
Although it is by nature a shy, harmless animal, it will put up a fight if necessary.
所有这些事情今天正在发生，虽然当然没必要因为月亮石头。
All these things are happening today, though of course not necessarily because of Moon rocks.
懂得如何快照的工作是有益的，虽然没有必要应用它们。
Understanding how snapshots work is helpful though not essential to using them.
破产虽然可以在某些情况良好，但不一定是必要的。
Though bankruptcy can be good in some situations, it may not always be necessary.
虽然这是十分必要的，但它不够健全。
虽然不可能预料到每一个公关机会，然而规划仍然是必要的。
While it is impossible to anticipate every public relations opportunity, planning is still necessary.
您还需要了解的信息，虽然是有必要的，它不是一个替代经验。
You also need to understand that although information is necessary, it is not a replacement for experience.
本次维护虽然持续的时间较长，但这是有必要的。
这种剧痛虽然是短暂的，可它有必要吗？
虽然，这里有一个叫做itsy-bitsy的技能题目必要办理，但这个设法是够酷的。
Sure, there are itsy-bitsy technical problems to sort out, but the idea is cool enough.
虽然，这里有一个叫做itsy-bitsy的技能题目必要办理，但这个设法是够酷的。
Sure, there are itsy-bitsy technical problems to sort out, but the idea is cool enough.
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