外语写作过程既包含串行处理和并行处理，又包含自上而下和自下而上的综合，同时也涉及自动化处理和受控处理的综合运用。

The process of the foreign language writing is complicated where both serial and parallel processing, both top-down and bottom-up processing, and both automatic and controlled processes are involved.

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首先，不是所有受控异常都是不好的；它们可用于事件通知或根据某些条件重定向处理。

First of all, not all checked exceptions are bad; they might be used for event notification or to redirect processing based on certain conditions.

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用这些方法处理塑料的过程也需要在严格受控的环境中进行。

The processing of plastics by these methods would also have to be contained in highly controlled environments.

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