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steel trap的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
Noun:
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an acute intelligence (an analogy based on the well-known sharpness of steel traps);
"he's as sharp as a steel trap"
"a mind like a steel trap"
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a trap made of steel with a strong spring and sharp toothlike projections to hold the prey
