This is caused by the fact that the parser uses backtracking to parse the code, i.e. they try many if not all possible combinations of outcomes until they figure out the right one.
这是由于解析器使用回溯来解析代码，例如，它们会尝试诸多结果的组合直到找到正确的那一 个。
The Internet, cell phones and airplanes are all technological advances that people use everyday and would not be possible without students of math and science inventing them.
互联网、手机和飞机都是人们日常使用的技术，如果没有数学和科学专业的学生发明它们，这些技术进步是不可能实现的。
“All our lawyers told us this was not possible,” says a person close to the company.
“我们所有的律师都说这是不可能的，”一个与该公司关系密切的人透露。
To minimize form complexity, not all of the possible attributes for these form components are surfaced.
为了降低表单的复杂性，没有显示这些表单部件的所有可能属性。
This is not what was intended, and it might not be possible on all JVMs or platforms, but it was allowed by the old memory model specification.
这并不是我们所想要的，而且在所有JVM或平台这是不可能的，但是旧的内存模型规范允许这样做。
It is not possible to disable interrupts across all processors.
禁止所有处理器的中断是不可能的。
All heat couldn't get successfully converted into work That would be desirable, but it's not possible.
都变成功，把全部热量变成功是非常令人期待的，但是这是不可能的。
If all possible solutions are not investigated, you can easily shortchange yourself and possibly use a more expensive solution than was required.
如果没有研究所有可能的解决方案，很可能会作出片面选择，有可能使用比所需更昂贵的解决方案。
It's also possible that our experience was not at all representative of the charm and ingratiating qualities pit bulls can demonstrate.
当然也有可能，即，以我们的经历，还够不上匹配斗牛犬所表现出来的那种迷人魅力以及谄媚能力。
You may want to put plans for building that flux capacitor on hold: a "toy" big bang created in the lab suggests time travel may not be possible after all.
也许你要把建造通量电容器的计划搁置下来：实验室下的大爆炸理论模型表明时间旅行也许根本不可能。
Suppose your boss tells you that it is possible that not all items in an order will be shipped at once.
假设您的老板告诉您可能无法立即发送订单中的所有商品。
Often it is not possible to remove all references to instances, classes or classloaders completely from the JVM.
但是通常情况下，从JVM中彻底删除对所有实例、类或classlodar的引用是不可能的。
Restrict account switching: If at all possible, do not configure sudo to allow users to switch to another account.
限定帐号切换：只要有一丝可能，就不要配置sudo允许用户切换到其他帐号。
Regardless of the reason, it is now possible that Mr Cameron will not, after all, be prime minister on May 7th.
不管什么原因，现在看来，卡梅伦有可能最终无法于5月7日成为英国首相。
This is not an "all or nothing" proposition, however, as it is possible to upgrade some modules and not others.
但是，这不是一个“全是或全否”的命题，因为有可能只升级某些模块而不升级其他模块。
In these situations all the possible clients to a service are not known when the service is created and this variable allows for interoperability problems.
在这些情况下，当创建服务时并不知道该服务的所有可能的客户端，因而这种变化就引起互操作性问题。
Therefore, while all possible solutions should be given serious consideration, it is not necessary to examine each one at the lowest level of detail — this is, after all, an architectural document.
因此，尽管应慎重考虑所有可能的决策，但也没有必要从最底层详细检查每个决策，毕竟这是一个归档的文档。
But the authors acknowledged that they could not account for all possible variables, and cautioned that it was an observational study that draws no conclusions about cause and effect.
不过，作者们承认未能一一证明所有可能的变化因素，并提醒这是项观察研究，不能就此得出这两者之间存在因果关系的结论。
And, while it may not be appropriate to expose all possible configuration fields to the user, developers don't always know what Settings are best for a final deployment.
而且，虽然将所有可能的配置字段都公开给用户也许并不合适，但是开发人员并非总是知道怎样的设置对于最终的部署才是最好的。
The code presented in this tutorial is built to be as cross-browser compatible as possible, but some features will not work in all browsers.
本教程中提供的代码尽可能是跨浏览器兼容的，但是一些功能将无法在所有浏览器中使用。
Adopting operating system virtualization for all test types is not possible because of dependencies.
由于依赖关系的原因，不可能对所有测试类型都采用操作系统虚拟化。
It may or may not be possible to fix all of the issues, or completely improve test coverage, but understanding the problem will help you plan for the future.
有可行修正全部问题，也可能不能完全修正，或者完全改善测试的覆盖率，但是对问题的理解有助于您对未来的规划。
Bourguignon says because of the high cost of the impact evaluations, it's not possible to undertake exhaustive impact evaluations on all projects and programs funded by the Bank.
布吉尼翁说，由于影响评价的成本较高，因此不可能对所有世行贷款项目和规划都进行影响评价。
Although collocated tables typically achieve the strongest performance, it is not possible in practice to collocate all tables.
虽然经并置的表通常都会获得最健壮的性能，但是在实际中，不太可能对所有表都进行并置。
When a critical application is down at 2:00 AM, it is possible that not all changes made while attempting to bring the application back online are documented – or reverted if not required.
当一个关键应用程序在 2:00 AM 关闭时，企图使该应用程序返回在线状态而进行的所有更改有可能不会被全部记录 —或者恢复，如果不必要的话。
If it's possible to tamper with the authentication device, such data capture should not be all that difficult.
如果有可能篡改认证设备，则获取这样的数据并不会很困难。
TVs, computers and other gizmos should not be in your bedroom if at all possible.
卧室中尽量不要放电视机，电脑和其它一些小玩意儿。
Unification may not be possible - To get all the characteristics of data consistent is seldom possible.
可能无法实现统一-使数据的所有特点一致几乎不太可能实现。
Unification may not be possible - To get all the characteristics of data consistent is seldom possible.
可能无法实现统一-使数据的所有特点一致几乎不太可能实现。
应用推荐