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to be mixed; to be blended with; to associate with; to mingle with; to join
いろいろな感情が交ざっている。
Various emotions are mixed together.
赤と青の絵の具が交ざって紫色になった。
The red and blue paints mixed together and became purple.
外国人が人混みに交ざっていた。
Foreigners were mixed in with the crowd.