单词knocker
n.: （固定在门上供敲门用的）门环；吹毛求疵的人；一味批评的人；奶子
网络: 挨户敲门的推销员；敲击者；敲门者
（固定在门上供敲门用的）门环:
a metal object attached to the outside of the door of a house, etc. which you hit against the door to attract attention
吹毛求疵的人；一味批评的人:
a person who is always criticizing sb/sth
（冒犯语）乳房，奶子:
an offensive word for a woman"s breasts
爆震剂
教练棒击球员
抖落器
给防守队员做接球练习的击球员
岩块
巨石
〔口语〕吹毛求疵的人;顽固的悲观主义评论家
敲者;敲门者
敲的人,来访者
门扣,门环
复数：knockers
n.door fixtureknobhandledoorbellbell
n.admirer
As he started to turn the key he looked at the door-knocker. He saw, not a knocker, but Marley"s face.
他正要开门时，他看见的不是门环，而是马礼的脸。
When he put his key in the lock of the door, he did not see a knocker.
当他把钥匙插入门锁时，并没有看到门环。
The totem of the front door is the knocker, a mechanism which announces arrival and allows the visitor to engage with the building.
房屋前门的图腾是门环，它宣告客人的到来，并使得来访者与建筑产生接触。
Scrooge could not move, he was so afraid. Then, as his eyes took a second, closer look at the face, it changed into a knocker again.
史高基挪动不了了，他太害怕了。然后，他用斗鸡眼看着那张脸，他又变回了一个门环。
I ran up the steps and I tried the door and knocked with the knocker.
我跑上台阶，想要开门，不停地扣着门环。
If the knocker identifies himself as a hotel employee, call the front desk to confirm.
要是敲门者说自己是宾馆服务员，你也要先打到前台去确认一下属实才开。
This one is a lion with a movable knocker, it looks a little bit like a towel holder.
这一个用一个可动的敲击者是一只狮子，它看像一个手巾持有人的小一点点。
He is so mean that he grudges the cost of the polish on his door knocker.
他太小气，连自家的门环都舍不得让别人多摸一下。
He brightens the brass knocker with a piece of cloth.
他用一块布擦亮铜门环。
Walter, in his impatience, gave a prodigious thump with the knocker.
沃尔特急不可耐地用门环砰砰地猛敲着。