layer

n.层，层次

lay off, lay off (sb), lay out, lay over, lay sb out, lay sb up, lay sth aside, lay sth away, lay sth down, lay sth in, lay sth on, lay to, lay up, lay waste, lay-by, lay-off, lay-over, layabout, layaway, layday, layer cake, layette, laying, laying-out, layman, layout, laze, lazily, laziness, lazy, lazy Susan, lazy-bones, lb, lbw, LCD, lea, leach, lead, lead off, lead pencil,