Such changes are all but invisible over the short time scale of modern observations, and, it is argued, they are usually obscured by innumerable gaps in the imperfect fossil record.

这些变化在现代观测短时间范围内几乎是看不见的，而且，有人认为，这些变化常常被不完善的化石记录中的无数空白所掩盖。

youdao

Saturn's rings are all but invisible now.

现在土星的光环几乎要看不见了。

youdao

And it turns out it's actually quite flammable. A hydrogen flame is very, very hot, but invisible.

而且，事实表明，氢气非常易燃，氢火焰极为炽热，但却是无形的。

youdao

But it takes a special talent to play an invisible guitar.

VOA: special.2009.08.14

But, and this will be the crucial point, notice Socrates should have continued the soul is invisible in that sense.

但是，这一点很重要，注意苏格拉底应该在这个意思上,继续阐述灵魂是无形的。

耶鲁公开课 - 死亡课程节选

Harmony is indeed invisible in sense Number 1, you cannot see it with your eyes, but for all that, it can be destroyed.

和声用无形的第一种解读方式理解，确实是无形的，你看不见它，但是它可以毁灭。

耶鲁公开课 - 死亡课程节选

In the cities, and in former-coal mining areas, the party is all but invisible.

ECONOMIST: The north of England: The great divide | The

Accordingly, the scandal has been all but invisible on the campaign trail.

ECONOMIST: Trick or treat?

Such side-bets can allow a crooked player or referee to cash in by pleasing a match-rigger in a way that is all but invisible even to a suspicious outsider.

ECONOMIST: Corruption in sport