蓝色成为首选之色，因为它是一种保守的、令人愉悦的且符合公司文化的颜色，象征着可信和安全。

Blue became the color of choice because it's a conservative, agreeable, corporate shade that symbolizes being trustworthy and safe.

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时下，电脑成为首选的写作工具。

These days, the computer is the writing implement of choice.

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有效的ID可以作为首选源中的ID接受。

A valid id is acceptable as an id in the preferred source.

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