trong đó means "among them" (pronoun). among them.
How is trong đó pronounced?
You can listen to trong đó on this page in both Northern and Southern Vietnamese accents.
How is trong đó used in a sentence?
For example: Có ba người, trong đó có tôi. (There are three people, among them is me.); Có nhiều món ăn, trong đó có phở. (There are many dishes, among them is rice noodles.).
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