This is not no small matter.

这不是一件小事。

For you see, young men and women, the charge upon you is no small matter.

青年男女啊，你们要知道，这不是一件小事。

It was especially unresponsive when he tried to play trills, and that was no small matter.

尤其是当他试图演奏颤音时，右手食指没有反应，这可不是件小事。

This reevolved ability may have been instrumental in their success. Since almost half the bird species now alive are Passeri, that is no small matter.

这种再进化的能力可能对它们的成功起到了重要作用。因为现在几乎一半的鸟类都是雀形目，这不是一件小事。