late 13c., agent noun from clap (v.). Meaning "tongue of a bell" is from late 14c. Old English had clipur. Meaning "hinged board snapped in front of a camera at the start of filming to synchronize picture and sound" is from 1940.
雙語例句
1. With time elapsing, the flaps collapse up on his clapper's lap.
隨著時間流逝, 袋蓋在拍手者的膝上堆疊起來.
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2. With time elapsing, the flaps collapse on the clapper's lap.
隨著時間流逝, 副翼在拍手者的膝蓋上堆疊起來.
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3. Clapper talk between two people is one type of clapper talk.
對口快板兒是快板的一種形式,由兩個人共同表演.
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4. You installed a clapper? - No , but catchy jingle, isn't it?
你裝了聲控裝置? - 沒有, 不過那首廣告曲很好玩對 吧 ?
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5. With time elapsing, the flaps collapse up on clapper's lap.