如果有一天我们分居异面直线的两头，那我一定穿越时空的阻隔，划条公垂线向你冲来，一刻也不愿逗留。

If one day we are separated at the two ends of a straight line on a different plane, I will cross the barrier of time and space, draw a vertical line to rush to you, and I will not stay for a moment.

零向量可以有很多方向，却只有一个长度。就像我，可以有很多朋友，却只有一个你，值得我来守护。

A zero vector can have many directions, but only one length. Just like me, I can have many friends, but only one you. It's worth my guarding.

你的生活就是我的定义域，你的思想就是我的对应法则，你的微笑肯定，就是我存在于此的充要条件。

Your life is my domain of definition, your thought is my corresponding law, your smile affirms, is the necessary and sufficient condition for me to exist here.

如果我的心是X轴，那你就是开口向上，与X轴不相交的抛物线，永远都在我的心上。

If my heart is the x-axis, then you are the parabola with the opening upward and the x-axis does not intersect. It will always be in my heart.