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当他踩到一块松板子时，地板吱吱作响。
The floor creaked as he stepped on a loose board.
youdao
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减少疲惫时、岩块松垮时或失足时坠落的长度。
To reduce the length of a fall due to fatigue, loose rock or a slip.
youdao
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减少疲惫时、岩块松垮时或失足时坠落的长度。
To reduce the length of a fall due to fatigue, loose rock or a slip.
youdao