I caught the flash of exasperation on his face before he greeted me (he was Fielding about one resignation a week at this point, so he probably expected the worst).
在他向我打招呼前我发现恼怒的神情在他脸上一闪而过。最近他每周都要处理一份离职申请，我想他担心事情变的更糟。
Machines are used where they're worth it: at another station, one tests the power output of finished cells with a flash of light before robotic arms place them into bins according to performance.
机器要用在更能发挥他们价值的地方：在另一个车间里，用一道光来检测成品电池的输出功率，然后依据检测结果使用机器手将他们放在箱子里。
A flash might be easy to miss but they're so reliable, if you do spot one, you may know someone likes you before they've even registered it themselves.
动动眉毛的动作很容易被忽略，但却很可靠。 如果你发现他挑眉毛，那你就能推断出他对你是有好感的，但可能他自己还没意识到这点。
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