划动
7.blade:The flattened or spoon-shaped part of an oar that touches the water during rowing.
8.A large open Eskimo boat made of skins stretched on a wooden frame, usually propelled by paddles.
9.The method of rowing such a boat, in which the persons fore and aft use one oar each and the person amidships uses two.
10.In “Book of Ashes” a massive needle traces tentative lines through ashes on a metal plate.

