How can line breaks take effect in < td >?

the requirement is that in < table > < td > I am the first line and I am the second line < / td > < / table > to achieve line wrapping, as in the p tag

has already tried, adding < br/ >

and other tags in td doesn"t work well, it will be displayed in text form, so come here for advice!

Jun.09,2021

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br

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modify it again. What I tested here is all right. Oh, I use chrome

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