layer/ˈleɪ.ɚ/名词（机构）层次We've cut the number of management layers from five to three.我们把管理层次从五层砍到了三层。层；涂层the ozone layer臭氧层/ˈleɪ.ɚ/动词把…按层排列，把…分层放置potatoes layered with onions土豆夹洋葱片想跟读，去练习
