1·My concern with leaving it up to the individual, however, is our limited sense of what needs to be achieved.
然而，我对将它留给个人来应对的担忧是，我们对丞待实现的目标的认识有限。
2·Why does their behavior indicate more of a concern with how much energy they expend than with being exposed to predators?
为什么它们的行为表明它们更关心的是消耗多少能量而不是担心暴露在捕食者面前呢？
3·Well, that's very admirable, but be careful, over concern with being perfect can damage our confidence if we never achieve it.
嗯，这是非常令人钦佩的，但要小心，如果我们从来没有达到过完美，那么过分追求完美会损害我们的信心。
4·The top concern with data federation is performance.
对于数据联合而言，最需要关注的就是其性能。
5·User interface is an ongoing concern with the plug-in.
用户界面始终是插件要考虑的问题。
6·But there is cause for concern with the following cancers.
但是考虑到后续的癌症，这是有原因的。
7·Performance is a serious concern with touch-based applications.
触摸型应用把性能表现放在很重要的位置。
8·The biggest ease-of-use concern with Hibernate are its exception messages.
Hibernate最大的易用性问题是其异常消息。
9·Performance is a constant concern with applications that need to use XML Schema.
对于使用XML Schema的应用程序而言，性能一直是需要关注的问题。
10·First and foremost, safety is a prime concern with a device that comes in contact with the eye.
首先也是最需要关注的一点是这种设备的安全性，因为它要和眼睛直接接触。