So time does not slip away meaninglessly.

于是时光不会无谓的流逝。

No one would sacrifice anything meaninglessly.

没有意义，没有人愿意牺牲。

The first whisked by with complete disregard, the second flashed meaninglessly.

第一辆车疾驰而过，完全没有注意到他。 第二辆车无意义地闪了闪灯。

Without a goal in life, you will be going through life aimlessly and meaninglessly.

如果人生缺乏目标，你将会漫无目的且毫无意义地度过一生。

I'm just going back and forth meaninglessly because I'm never going to get anyplace. "Right?"

我来回穿梭于文本中毫无意义，因为我永远不会真正地理解它，是吗？