经过了很长一段时间，全世界才真正认识到它的独特魅力。

It takes a long time to really impress the world.

youdao

经过很长一段时间后，美国在领土上得到了很大的扩充。

Over a long period of time, America expanded enormously in territory.

youdao

你虽然改正错误，也得经过很长一段时间，人们才会忘掉你那愚蠢的过去。

It will be a long time before you live down that foolish mistake.

youdao

然而，在远古时代，人们结婚是需要经过很长一段时间的。

However, in the remote antiquity, it took long periods before young couple got married.

youdao

大卫：经过很长一段时间的考虑后，我终于下定决心了。

David: I've thought long and hard and my mind is made up.

youdao

已经过了很长的一段时间！

It's been a long time!

youdao

已经过了很长的一段时间！

It's been a long time!

youdao