Typically, the number of active service class periods in a system should not exceed 30.

通常，系统中的活动服务分类周期的数量不应该超过30。

youdao

If supported, the operating system should not allow executing programs on the stack.

如果可能，操作系统应不允许在堆栈上执行程序。

youdao

Therefore, the role that finance plays in the economy system should not be underestimated.

财政在经济生活中发挥的作用不可小觑。

youdao

Because it challenged the whole class system, that people are born into a certain place and cannot-- and should not-- be moved.

因为它挑战了整个阶级体系，人生来就有阶级，不能-,也不应该被改变。

哈佛公开课 - 幸福课课程节选

The new optical networking system should not be seen as a replacement for fiber-optic systems, Szelag added.

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The incoming chairman of the House Armed Services Committee, Skelton said the all-volunteer system should not change.

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The system should not produce a slew of tornadoes, since there is not a lot of cloud rotation, Cabrera said.

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