I still have a problem telling the twins apart.

我仍然分不清这对双胞胎。

But when the shapes were iridescent, the bees had trouble telling them apart.

但是当形状呈彩虹色时，大黄蜂很难进行区分。

But even the experts have a hard time telling the eggs from two different species apart by appearance alone.

但就连专家都很难仅凭外观分辨两个不同鱼种的鱼子。

And even though our untrained ears have a hard time telling the tones apart, female canaries seemed to notice.

虽然我们人类未经训练的耳朵很难区分这两种音调，但是看起来雌性金丝雀却能注意到两者的区别。

But Adam and Danielle have mastered the art of telling their quints apart… most of the time, that is.

但是亚当和丹妮尔已经掌握了区分五胞胎的艺术… 大多数时候，就是这样。

Because I run a daycare, and I have a hard time telling those kids apart.

因为我经营一家日托中心，所以我很难区分这些孩子。

Nevertheless, it is one of the best methods we have for telling males and females apart.

然而，这是我们区分雄性和雌性的最佳方法之一。

And the trick to telling stems apart from leaves is to look for a bud nestled above the thing that looks like a branch.

区分茎和叶的诀窍是在看起来像树枝的东西上面找一个芽。

He was sure that the honey thief was hiding among the hares, but he had no way of telling her apart from the others.

他确信偷蜜贼就藏在野兔中间，但他无法区分她和其他野兔。

And it would've lived alongside a bunch of its mammal-like relatives - things that, if you saw them today, you'd have a hard time telling them apart from true mammals.

它会和一群类似哺乳动物的亲戚生活在一起——如果你今天看到它们，你很难将它们与真正的哺乳动物区分开来。