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n.（有助于成功的）跳板( springboard的名詞復(fù)數(shù) )，（跳水、體操等體育運(yùn)動(dòng)中的）跳板，踏板...
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springboards的音標(biāo)：...
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The springboards are 1 meter and 3 meters high.跳板分1米和3米兩種高度.The springboards are 1 metre and 3 metres high.跳板的高度是1米和3米.How high are the springboards?跳板的高度是多少?...