单项选择题 To run a vessel upon a beach to prevent its sinking in deep water means（）.

单项选择题 To secure a vessel in a particular place by means of chains or ropes made frast to the shore, to anchors, or to anchored mooring buoys, or to ride with both anchors down defines（）.

单项选择题 Transverse movement of cargo, especially bulk, caused by rolling or a heavy list defines（）.