Retropulpitis
逆行性牙髓炎
🗣️ 情景例句
It is nice of you to invite me to the party tonight.
你真好，邀请我参加今晚的聚会。
He comes bothering me day after day.
他每天都跑来打扰我。
So, faced with the Danish advance, Alfred did not risk open battle but harried the enemy.
因此，面对丹麦人的进攻，阿尔弗雷德没有贸然同敌人作战，而是采用骚扰敌人的战术。