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to succeed; to relieve; to replace
to take the place of; to substitute for; to take over for; to represent; to hand over (telephone)
to be exchanged; to change (places with); to switch
選手が替わった途端に流れが変わった。
The momentum shifted the moment the player was substituted.
来月から新しい担当者に替わるそうだ。
Apparently a new person in charge will take over next month.
店の看板が替わった。
The shop's sign was replaced.