In all cases, you should implement and test all changes in your test environment before you consider adding them to your production environment.

无论何种情况，您都应该在考虑将更改添加到生产环境之前在您的测试环境中实现并测试它们。

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Then, we will be able to control the changes, and test the results before implementing them on our live site.

这样，我们就能够控制变更并测试结果，然后在我们的站点上应用它们。

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You can now test your changes.

您现在可以测试您的更改了。

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The average number of wrong-to-right changes per test was around two.

ECONOMIST: Is too much weight given to testing?

The changes to the test are part of a drive to cut the number of accidents caused by poorly-maintained cars.

BBC: L-plate

For riders who decide to progress to the full test, more changes are afoot next January, when a new, single-part on-road test will be phased in.

BBC: The rush to the scooter