"My university's corona phase dropped and club activities have started again."
- "My university's corona phase dropped and club activities have started again."
"my university's ~" 「私の大学の〜」
"corona phase" 「コロナのフェーズ」"covid phase" や "covid wave" も言えます。
"dropped" 「下がった」
"club activities" 「部活」
"have started again" 「再開された」