硅谷之乡加州最近提出了更为严格的规定，要求人类驾驶员做好驾驶准备，并禁止将自动驾驶技术用于商业用途。

California, home of Silicon Valley, recently proposed far more restrictive rules that would require human drivers be ready to take the wheel, and ban commercial use of self-driving technology.

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完全开源和免费用于商业用途。

Completely open source and free for commercial use.

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将MySQL用于商业用途需要许可费用。

Licensing fees are required for commercial use of MySQL.

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One is building new houses, another one is building new apartment buildings that's commercial instead of-- but it's still adding to the housing stock and the third one is improvements of existing houses.

一种是新建家庭住宅,另一种是新建公寓,用于商业用途而非...,也是存量住房的一部分,第三种是现房改造

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