这样的生命不是很有意义吗？

This life is not meaningful it?

youdao

这在放射性方面不是很有意义，因为我们所观察的原子数目通常很大，以至于在实用上我们可以忘记半衰期变短的可能性。

This is not very interesting in radioactivity, because the number of atoms we look at is usually so huge that for practical purposes we can forget about the possibility of half-lifes getting shorter.

youdao

尽管可再生能源技术从商业角度来说可能很有意义，但是它不是建立在‘好的、实用的基础’上的。

And while renewable energy technology may make good business sense, he says, it is not based on "good practical engineering".

youdao