质量第一，速度第一，服务第一！

Quality first, Speed first, Service first!

youdao

如果该调查有所发现的话，这就不是电信服务商第一次因其承诺的宽带速度和实际提供给顾客的网速不一致而陷入麻烦。

If the investigation uncovers anything, it wouldn't be the first time a telecom provider got into trouble over the broadband speeds it promised and delivered customers.

youdao

因此在第一秒内,速度根据时间而变化。

And so during the first second this is the velocity as a function of time.

youdao