"上课铃声敲几下"...上课铃声敲几下
"上课铃打几声"...上课铃打几声
"上课铃声敲响"...上课铃声敲响
"上课铃打响"...上课铃打响
"敲上课铃的节奏"...敲上课铃的节奏
"上课铃一般响多久"...上课铃一般响多久
"上课铃敲钟"...上课铃敲钟
"上课铃打几下"...上课铃打几下
"上课铃声敲钟"...上课铃声敲钟
"上课铃怎么敲"...上课铃怎么敲
