I was always sending messages to my future self using tape recorders.

我一直使用录音机发送讯息给未来的自己。

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Using tape recorders hidden in their handbags, the researchers took note of what female clubbers were wearing and how many times they were approached by men asking them to dance.

使用藏在手提包里的摄像机，她们记录下女性的穿着，以及有多少男性接近她们并邀请她们跳舞。

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