lay down

安装、建造、铺设

lawful, lawfully, lawgiver, lawless, lawlessly, lawlessness, lawmaker, lawn, lawn mower, lawn tennis, lawn-mower, laws, lawsuit (also suit), lawyer, lax, laxative, laxity, laxly, lay, lay aside, lay figure, lay hold of, lay in, lay into sb/sth, 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,