Second crack can be a little more difficult to hear as these sounds are lower in volume, but once you learn to distinguish the sound it is unmistakable.

二爆的声音有点难听到，因为这些声音更低沉，但是一旦你学会了分辨就不会混淆。

youdao

While Sade's voice isn't technically brilliant it has a quality which is unmistakable.

虽然萨德的嗓音从技巧上讲不是很出色，但它有一种独特的音质。

《柯林斯英汉双解大词典》

It is also an unmistakable sign that Protestant opinion is in a febrile state.

同时，这也是一个明显的象征：新教普遍处于头脑发热中。

youdao

"I know some question whether we can afford to act this year. But the unmistakable truth is that it would be irresponsible to not act.

VOA: standard.2009.06.13

The organisers have tried to slip it in unnoticed, but it is unmistakable, particularly in the over-worthy catalogues that accompany the shows.

ECONOMIST: Spanish empire

The city itself was created in a studio and placed here by the magic of visual effects, but even without it the battlefield is unmistakable.

BBC: A return to Middle-earth

But it does send an unmistakable message that the Senate is getting impatient and, of course, we have elections for Congress next year.

NPR: Political Fireworks Erupt in Washington over Iraq