First of all in a typical environment the only person to whom I want to collaborate is another engineer and I will come to him, or email, with direct problem or issue to seek advice or help.

首先，在一个典型的情况下，我唯一需要与之协同工作的人是另一名工程师，如果我碰到问题需要他建议或帮忙，我会直接去找他，或给他发邮件。

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Make sure to register as a self-employed person with the relevant tax authorities and seek their advice if necessary.

务必到相关税务机关登记为自谋职业者，如果有必要，征求他们的意见。

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But if this mood lasts for more than a few days, a person may be suffering from depression, and will need to seek the advice of a physician.

但是如果这种情绪持续了好些天，那么这个人就有可能是患了忧郁症，需要向大夫求助。

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