There's been an alarming increase in schoolyard violence.校园操场上的暴力事件剧增。All the moms were waiting in the schoolyard.所有的妈妈们都在学校操场上等着。Children would settle disputes by trading punches or insults in the schoolyard.儿童会通过在操场上对打或互骂的方式解决争端。That fence is the limit of the schoolyard.那堵围墙是校园的界限。