It is a coming tide whose waters retreat a little after a single wave, but the next one is closer to your heart than the one before.

又如涌来的潮水，正因为有一浪过后的退却，下一浪才会比前一浪更靠近你的心。

youdao

A tsunami is not a single wave, but a series of waves that can travel across the ocean at speeds of more than 800 kilometers an hour.

海啸并非只有一波海浪，而是一系列海浪。这种一波又一波的海浪在大洋中可以每小时800公里的速度传播。

youdao

There is a series of resonant regions in the velocity space of a magnetized plasma interacting with a single wave.

在相干波与磁化等离子体相互作用的系统中，当波的强度超过某个阈值时，速度空间中的一些共振区将互相重迭。

youdao

I just showed you that you can have a single wave, a double, a triple and so on.

我想说的是你能得到单个波，双波，三条波等等。

麻省理工公开课 - 固态化学导论课程节选

So, if something cycles through five wavelengths in a single second, we would just say that the frequency of that wave is five per second.

如果一个东西在一秒,内经历了五个波长，我们就说这个波的,频率是每秒5次。

麻省理工公开课 - 化学原理课程节选

All the agony of childbirth had hit her in a single wave.

CNN: Delivering my son: 'Breathe, baby, breathe!'

If the tide of South-East Asian migrants had broken upon Bradford in a single wave, as did the Kenyan and Ugandan Asians who fled to London and the Midlands in the late 1960s and early 1970s, their story would be simpler, and happier.

ECONOMIST: Segregation

We have always had huge day-to-day and year-to-year variations in our weather, and we always will do, and a couple of cold winters are no more evidence that climate change has stopped than a single summer heat-wave proves that global warming is happening.

BBC: Time to spend more money preparing for colder winters?