做“低头”说,low their heads和lower their heads有什么区别?
问题描述：
做“低头”说,low their heads和lower their heads有什么区别?
答
没有low their heads的说法,只能用lower their heads
做“低头”说,low their heads和lower their heads有什么区别?
没有low their heads的说法,只能用lower their heads