我已经令人惊喜地绕了一圈，这事好像是我的生活中一场按原路折回的演习。

I had made a surprise loop, it seemed, a double-back maneuver in my life.

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它还在传输过程中的双向视频垂直折回的时间间隔相同的链接辅助数据。

It also transports auxiliary data bidirectionally over the same link during the video vertical retrace interval.

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将其中两段缝在左边拖鞋的前部，相距6.5 cm(算上折回的1.5 cm)，沿边缘缝好，如图e。

Pin two pieces on the left slipper front, about 6.5cm apart with a 1.5cm fold back. Hand-stitch in place along the folded edge, following figure e.

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