lay siege to . besiege；invest with a hostile army包围；围困
The army has laid siege to the city several months．军队已包围该城数月。
The German army laid siege to Paris in eighteen seventy．德军于一八七零年包围巴黎。
lay siege to . beseech or importune constantly 恳求；强求
He was struck by Mary's beauty and laid siege to her heart．他为玛丽的美色所迷，并拼命追求她。
lay stress on . lay stress upon . emphasize强调
In his speech he laid stress on the need for better understanding among nations of the world．在演讲中，他强调世界各国有必要加强相互之间的了解。
lay to . give the blame or credit to；name as cause归因于；归功于（或归罪于）
He was unpopular and when he made money， it was laid to his dishonesty， but when he lost money， it was laid to his stupidity．他不得人心，当他赚钱时，人家说他来路不正，而当他赔了本时，人家又说他笨。
lay to . hold a ship or boat still against the wind；come to anchor逆风而保持船静止不动；停泊
The ship laid to off the coast．这艘船停泊在海岸外面。
The pirates decided to lay to that night and go ashore in the morning．海盗们决定该晚停船不动，天亮再登岸。
lay to . exert oneself；work hard努力工作
He got hold of a shovel and laid to with the others．他拿起铲子与别人一起大干起来。
lay to . attack vigorously猛烈攻击
He seized a stick and laid to in all directions．他抓起一根棍棒向四下乱打。
lay to heart . hear seriously； ponder deeply over 认真听；深思
I wish the boy would lay to heart the wise counsel his teacher has given him．我希望这个男孩能认真听老师对他的忠告。
lay to rest . get rid of； put away permanently；stop除去；放下；停止；烟消云散
Her doubts were quickly laid to rest when he arrived as he had promised．当他按约到来以后，她的疑虑就烟消云散了。
The rumour that the principal had accepted another job was laid to rest when he said it wasn't true．有关校长已经接受了另一工作的谣言，在其本人辟谣以后就没有人再乱传了。
lay to rest .put a dead person into a grave or tomb；bury安葬；埋葬
He was laid to rest in the churchyard．他被安葬于教堂墓地。
lay up . save or store for future use储备
Bees lay up honey for the winter．蜜蜂采蜜以过冬。
There was no ammunition laid up in the storehouses．仓库里没有贮存军火。
lay up . keep in bed； cause to stay in bed or keep indoors卧床；呆在家里
He has been laid up with a broken leg．他腿摔坏后一直卧床。
A bad attack of flu can lay you up longer than you think．严重流感会使你卧床的时间比想象得长。
I've been laid up with rheumatism for a week．风湿病使我卧床休息了一个星期。
You'll lay yourself up if you go on like this． 如果你这样继续下去的话，你就要病倒了。
lay up . （of a car or a ship） take out of use or active service and keep in a garage or a boat dock（船或小汽车）搁置不使用；放在车棚里或停在码头
There are some people who use their cars only in the period between March and December，and lay them up during the winter．有些人只在三月至十二月期间使用小汽车，在冬天就停止使用了。
Bill had to lay up his boat when school started．学校开学后，比尔不得不把他的船收藏起来。
The company have had to lay up several of their fleet， and others are likely to be laid up if trade does not improve．公司不得不让一些船休航在码头，如果生意无起色的话，其它船队也可能停航。
My car has been laid up for a week for urgent repairs．我的小车要紧急修理，已经停止使用一个星期了。
lay up . accumulate积蓄
You'd better have an allround physical examination right away or you're laying up trouble for yourself．你最好立即作一次全面的体格检查，否则你会给自己添麻烦的。
lay waste . cause wide and great damage to；destroy and leave in ruins损毁；蹂躏
Enemy soldiers laid waste the land．敌军糟蹋了这块土地。
In less than an hour's time，the typhoon laid waste a number of towns and villages along the coast．不到一个小时，台风就把沿海一些城镇和乡村变成了废墟。
lay heads together . put heads together . conspire；confer 共谋；商议；集思广益
We'd better lay our heads together before deciding on any definite course of action．我们最好先商量一下，然后再决定行动方案。
laze around . laze about . move or lie about lazily懒懒散散地闲逛或懒散地躺着
You have been lazing about too much lately．你近来太懒散了。
Stop lazing about and do something！别再鬼混了，干点事吧！
laze away . be lazy or idle continuously连续地懒散
It is lovely just to laze away in the sun．在阳光下懒散一会儿真是太舒服了。
laze away . pass（time，） lazily懒散地度过
They lazed away the whole afternoon．他们懒散了整个下午。
Don't laze away your time．不要虚度光阴。
lead a dog's life . live a hard life 生活艰苦
He led a dog's life in the past．他过去生活贫困。