The government, when necessary, has recourse to the armed forces.
政府在必要时可以动用军队。
They are not afraid to tackle the issues or let the sparks fly when necessary.
他们不怕应付这些问题,必要时也不惜进行唇枪舌剑的激烈争论。
Only flush the toilet when necessary: this means to not use the toilet as a garbage to avoid wasting water.
只在必要时冲厕所：这意味着不要把厕所当作垃圾桶使用以避免浪费水。
With any container that you choose, you need to ensure that it allows the water in it to drain when necessary.
对于您选择的任何容器，您需要确保在需要的时候它能够排除里面的水。
A new system allows a combine harvester, say, to send a call over to a tractor-trailer so the driver can unload the grain as and when necessary.
例如，一种新的系统允许联合收割机向牵引拖车发送呼叫，以便司机可以在必要的时候卸载谷物。
They generally tend to share very similar tastes in music and clothes, they spend their money in having a good time, and save for holidays or longer-term plans when necessary.
他们通常倾向于在音乐和服装上有着非常相似的品味，他们把钱花在享乐上，并在必要时为假期或长期计划存钱。
Sometimes I watched the online classes again when necessary.
有时候，我会在必要时再看一遍在线课程。
Although they are big animals, elephants can move silently when necessary.
虽然大象是大型动物，但在必要时它们可以悄悄地移动。
必要时轻装上阵。
She will help you when necessary.
必要的时候她会帮助你。
Tell him all about it when necessary.
在必须的时候把一切都告诉他。
Instead, learn to readjust your approach when necessary.
相反的，当有需要的时候，学会重新调整你的方法。
Perl 6 regular expressions can be reused when necessary.
在需要时，Perl6正则表达式可以被复用。
Contact is rare - the occasional phone call, when necessary.
联系很少——偶尔的通话，在必要的时候。
As always, you should profile your code and optimize it when necessary.
一如既往的，你应该在必要的时候分析和优化你的代码。
HAC detects failures, performs failovers, and restarts servers when necessary.
HAC检测故障，执行故障转移，必要时重新启动服务器。
At the same time, 70% of the women said they 'buy nice things when necessary.'
与此同时，70%的女性表示，她们会在必要的时候买好东西。
At the same time, 70% of the women said they 'buy nice things when necessary.'
与此同时，70%的女性说，她们会在必要的时候买好东西。
At the same time, 70% of the women said they "buy nice things when necessary."
与此同时，70%的女性说，她们会在必要的时候买好东西。
With that in mind, be conservative with this method, and only use it when necessary.
认识到这一点，在使用这种方法时，要十分慎重，只有在需要的时候才使用它。
If required, upgrade the new machine with more RAM and disk space when necessary.
如果需要，可以加大新机器的RAM和磁盘空间。
Nesting Profilers in this way allows you to build up complex bindings when necessary.
这样嵌套profiler使您可以在必要时构建复杂的绑定。
Nesting Profilers in this way allows you to build up complex bindings when necessary.
这样嵌套profiler使您可以在必要时构建复杂的绑定。
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