WE MUST CLEAN THE XXXX OF DUST ON THE FURNITURE EVERY DAY (LAY),用LAY的一个形式代替XXXX
问题描述:
WE MUST CLEAN THE XXXX OF DUST ON THE FURNITURE EVERY DAY (LAY),用LAY的一个形式代替XXXX
答
layers . dust layer或layer of dust 是灰土层的意思~~