基本解释[机] 滚筒抛光英汉例句双语例句'It's as well to be on the safe side, ' said the Rat reflectively, polishing a pistol-barrel on his sleeve and looking along it.“保险点总没坏处吧,”河鼠沉吟着说,他把一支枪筒在袖子上擦得锃亮,顺着枪管察看。3g.en8848.com.cnbarrel polishing更多例句专业释义机械工程滚筒清理滚筒抛光