I send bitcoin from bitcoin core
After 4 hours still this status is not changed.

Bitcoin core is full synced (Block 686194)
Connected 10 active net work


Status: Status: 0/unconfirmed, not in memory pool
Date: 2021/06/04 09:48
Sending address: poloniex 1mAvvCaz5p5LXEkzK8ZpzMFvyvcUvooho
借方: -0.29372963 BTC
transaction fee: -0.00011510 BTC
Total : -0.29384473 BTC
Transaction IDID: b6f10f35bd317a9cf9741cf7693abded0c3da13e49000e17b1a83f0cba25deac

トランザクションの全体サイズ: 11508 bytes
トランザクションの仮想サイズ: 11508 bytes
アウトプット インデックス数: 0