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A preposition is a word such as 'by', 'for', 'into', or 'with' which usually has a noun group as its object.
There is nothing in the rules of grammar to suggest that ending a sentence with a preposition is wrong.
prepositionに関する情報は比較的少ないので、バイリンガルの話を見て気分をリラックスさせることができるかもしれません。幸せな一日をお過ごしください。