A wedge - shaped piece of material,such as wood,that is fastened onto something,such as a spar,to act as a support or prevent slippage.是什么意思_A wedge - shaped piece of material,such as wood,that is fastened onto something,such as a spar,to act as a support or prevent slippage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句