put down可以表示：
1.记下
Never put anything down on paper which might be used in evidence against you at a later date.
一定不要写下任何书面的东西，以免日后被用作对你不利的证据。
Please put down what he said.
请记下他的话。
2.付（定金）
He bought an investment property for $100,000 and put down $20,000.
他以10万美元买下一处投资性地产，并支付了2万美元的定金。
We've put down a 5% deposit on the house.
我们已支付了房款的5%作为订金。
Now you've finally got enough money together to put down a deposit on your dream home.
现在，你们终于凑足了钱，可以去为梦寐以求的房子交订金了。
3. 镇压（暴乱或叛乱）；扑灭
Soldiers went in to put down a rebellion.
军队出动镇压叛乱。
The army put down the rebellion.
军队镇压了叛乱。
The British soon put down the rebellion.
英国人很快平息了叛乱。
The government put down an armed rebellion last week.
上星期政府镇压了一次武装叛乱。
The fire had been put down before it took the forest.
火在蔓延到森林前就被扑灭了。
4. 贬低；奚落；使窘迫
I know that I do put people down occasionally.
我知道我确实偶尔会奚落别人。
Racist jokes come from wanting to put down other kinds of people we feel threatened by.
开种族主义色彩的玩笑是因为我们想羞辱那些对我们构成了威胁的其他种族。
5. 杀死（具危险性或生病的动物）
Magistrates ordered his dog Samson to be put down immediately.
治安官们勒令立即将他的狗萨姆森杀掉。
She finally agreed to have the wretched animal put down.
她最后同意用药结束这头可怜的动物的生命。
6.放下；铺设；扎根
After two rings I put down the phone
响了两声后，我放下了电话。
I put down the sun visor to shade my eyes from the light.
我拉下遮阳板来遮挡耀眼的阳光。
I had to stop at the traffic lights and put down the sun visor to shade my eyes from the light.
我不得不在红绿灯处停车，然后放下遮阳板来遮挡阳光。
Mishka put down a heavy shopping bag.
米什卡把一个沉重的购物袋放下。
He put down the bag carefully and said, "Thank you so much."
他小心翼翼地放下包，然后说道："非常感谢。"
Danny put down his glass.
丹尼放下了玻璃杯。
Hearing that there was an emergency case, the doctor put down his chopsticks and left at once.
听说有急诊，医生撂下筷子就走。
The waitress whipped the plate away and put down my bill.
服务员把盘子撤走，放下了我的账单。
They put down wooden boards, and laid new carpets on top.
他们铺好木地板，在上面铺上新地毯。
When they got to Montana, they put down roots and built a life.
到了蒙大拿后，他们便在那里扎根并过上了新生活。
put down as 估计；把……看成
I'll put you down as a yes.
我把你看作赞同者。
I'll put you down as a no.
我就当你是反对了。
I'd put them both down as retired teachers.
我看他们俩都是退休教师。