Until the present time we had seen alive only marine monsters and fishes.

直到现在，我们只看到活着的海洋怪物和鱼类。

This tradition of hanging red lanterns on the fifteenth day of the lunar year has continued until the present time.

正月十五挂红灯笼的习俗一直延续到现在。

This tradition has been continued until the present time and has become an important way to celebrate the arrival of the new year.

这一传统一直延续至今， 成为庆祝新年到来的重要方式。

We often use for with perfect tenses, especially when we want to talk about something that started in the past and continues up until the present.

我们经常用“for”和完成时态连用，尤其是当我们想谈论过去开始并持续到现在的事情时。

And in exchange, since 2018, up until the present, he has been a steadfast ally of Kevin McCarthy because Kevin McCarthy has facilitated this path to power.

作为交换，自2018年至今，他一直是凯文·麦卡锡的坚定盟友，因为凯文·麦卡锡推动了这条权力之路。

Many species within this family have conserved the alleles required to synthesizing muscarine until the present day, with a smaller subset of living genera within this family to lose this trait.

这个家族中的许多物种直到现在都保留了合成毒蕈碱所需的等位基因，家族中只有一小部分活的类属失去了这种特性。

Use the present perfect to talk about the time that started in the past but continues until the present, maybe something happened to the past but the result is in the present.

用现在完成时来谈论从过去开始但一直持续到现在的时间，可能事情发生在过去，但结果在现在。

The big reason why it doesn't is because for pretty much the entire history of Australia, right up until the present day, it's just been a really tough place for anyone to actually get to.

之所以没有，很大的原因是因为在澳大利亚的整个历史中，直到今天，对任何人来说，澳大利亚都是一个很难到达的地方。

I went to tell Grandet of the steps his uncle and I took in his father's business, and the clever manoeuvres by which we had managed to keep the creditor's quiet until the present time.

我去告诉格朗台他叔叔和我在他父亲的生意中采取的步骤，以及我们设法使债权人保持沉默直到现在的巧妙策略。

When you are talking about a continuous action that begins in the past and continues until the present, as our speaker does in talking about the dragon, you combine has with been and the -ing form of the verb.

当你谈论从过去开始一直持续到现在的连续动作时，就像我们的演讲者在谈论龙时所做的那样，你将 has 与 been 和动词的 -ing 形式结合起来。