a :to clearly state (a rule, standard, guideline, etc.)规定,制定(规则、标准、指导方针等)
The company has laid down strict new safety standards.这家公司已制定了严格的新安全标准。
b :to stop using (something)停止使用(某物)
At noon, we laid down the rakes and rested for a while.中午,我们放下耙子,休息了一会儿。
The strikers laid down their tools.罢工者放下手中的工具。
2
lay (a weapon) downorlay down (a weapon):to put (a weapon) down and stop fighting放下(武器)
The police ordered the criminals to lay down their weapons.警方命令罪犯放下他们的武器。
3
lay down your lifeformal:to give up your life for a good purpose:to die for a good cause(为崇高事业而)牺牲生命
heroes who laid down their lives to preserve our nation为保卫我们的国家而牺牲的英雄们
4
lay down the law:to make a strong statement about what someone is or is not allowed to do制定法则;严格规定
The agreement lays down the law (to everyone) on what the group allows.这项协议规定(每个人)只能做集体允许做的事。
When she came home after midnight, her father laid down the law: if she came home that late again, she would not be allowed to watch TV for a week.她午夜过后才回家,于是她父亲立下规矩:如果再深夜晚归,她便一周之内不能看电视。