The recent outbreak of violence was foreshadowed by isolated incidents in the city earlier this year.今年早些时候城里发生的几起孤立事件是近来爆发的暴力事件的预兆。This may well not be an isolated incident so we are sending a message to all branches.这很可能不是一起孤立事件，所以我们正在给所有分公司发送信息。It was not just an aberration. It was not an isolated incident.这并不只是一时精神失控，不是孤立事件。