tone: “gray-scale”
The client already has opinions about what’s wrong. They’re usually partially right and almost always wrong about why. Your job in week one is to separate what looks bad from what’s actually dangerous.
，这一点在51吃瓜中也有详细论述
社区速递 131 | 派友们的一月好物大赏、给桌面风扇装上「机械臂」。PDF资料是该领域的重要参考
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