I think it, it's less now than it used to be like, you know, 50 years ago,

不过我想现在比过去少了，我是说，比50年前少了。

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The "I wonder if" pattern, like it sounds, is used to express the fact that you don't completely know something.

I wonder if”句型，就像字面意思表达的一样，是用来表达你对某事并没有彻底的了解。

I wonder if 课堂 - SpeakingMax英语口语达人