Probably everyone had the experience of taking a wrong way, or getting lost, or facing a difficult decision at crossroad.
大概每个人都有走错路，走迷路，或在十字路口面对艰难选择的经历。
They whizz through optical fibres, rarely getting lost or interfering with one another (which is why different coloured signals can be sent down a single fibre, to multiply its capacity).
它们通过光纤飞速传输，几乎不丢失数据也不被其他东西干扰（这就是为什么不同的信号可以在同一根光纤中传输以倍乘它的容量）。
Trying to achieve goals without writing them down is a sure way to get lost along the way, or worse, never getting to where we need to be.
试图达成目标却又不将目标记下必定会在路途中迷失，或者更糟糕的是永远不会抵达我们想要到达的地方。
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