Then all of a sudden Smiley's dog would grab that other dog by his back leg and hang on till the men said it was over.

VOA: special.2009.08.29

And then all of a sudden we have discover, discover, discover, discover. What does this mean?

突然之间，我们发现了，发现，发现，发现，那是什么意思呢？

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And then all of a sudden, he just calls me and invites me to his wedding.

然后突然之间，他打电话给我，邀请我参加他的婚礼。

I've already 实战 - SpeakingMax英语口语达人

And then all of a sudden the dog goes "arrrrrrrkkk!"

然而突然之间，这狗突然狂叫起来，“汪汪汪！”

If I were 课堂 - SpeakingMax英语口语达人

Then all of a sudden, someone's phone goes off.

突然，有人的电话响了。

I hate 课堂 - SpeakingMax英语口语达人

So you feel that you know pretty well how things behave, but then, all of a sudden, there's something way out here.

然后你觉得对市场行为了解的差不多了,但是突如其来,有些东西在这里出现了

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