adj.搭乘的；登机的；登船的
动词board的过去式和过去分词.
Doors of derelict houses may be boarded and nailed up to prevent children from getting in. 无人居住的房子，可以用木板把门户钉起来，以防止小孩进入。
He boarded at my house/with me until he found a flat. 他找到住房之前，在我家寄膳。
Many students have to be boarded out in the town. 许多学生得在城里膳宿。
