词汇	tarred board
释义	tarred board 焦油纸板
随便看	second officer second officer, second mate second of the same tenor and date unpaid second of time Second of two possible upgrades second older logic second-oldest second only to Second oocyte second operand second operate Second operation second operation machine second operation race second operation seaming roll second operation work second-operation work second operator second operators second opinion second-opinion second opinion date second opinion documentation received Second Opinion Hotline second opinion physician