He chalked the message on the blackboard...他用粉笔将消息写在黑板上。The boys chalked out goalposts on the sports ground wall.男孩子们在运动场边的墙上用粉笔画上了球门柱.The team chalked up the ten victories against two defeats.该队赢10场输2场.Several important...
Finally, the Civil Aeronautics Board ( CAB ) has jurisdiction over civil aviation, including routes, rates, and sudsidies.最后, 民用航空局 ( CAB ) 对民航(包括航线, 运费和津贴)有管辖权.Advanced Aeronautics booster color changes for Apollo and C...