on the knocker的意思|示意

Each oblivious professional was caught on hidden camera as they walked up to the house, where a man had disguised his face as an old, ornate door knocker.

每个专业推销员在走向这所房子时，都在不知不觉中被隐藏的摄像机拍了下来，而这所房子的门环，看上去古老又华丽，却是人脸伪装的。

What you long to know about a house when you put your hand on the knocker.

当你把手放到门环上时，你能有这般了解一整座屋子吗？

A group of salesman tasked with door knocking on people's houses had the fright of their life when they were greeted - by the door knocker.

一群销售员被布置了上门推销的任务，然而当门环跟他们打招呼时，魂儿都被吓出来了。

Selling gemstones on the knocker will soon become a familiar feature of suburban life.

挨家挨户推销宝石很快会成为郊区生活中的一种常见现象.

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