| 释义 |
knock.erH5nBk7E5, $5nB:7kLn [C]door.knock.er A knocker is a metal object fixed to a door which visitors use to hit the door in order to attract attention.门环(Aus infml) They said they'd arrive at six and they were there right on the knocker (= at exactly that time).他们说他们将六点到达，果然分秒不差。
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