I see. By the way, what benefit can we get if we act as your agent?
明白。順便問一下,假如我們做你們的代理會有什么好處?
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前,我們只知道海洋是二維平面形的,以及靠近陸地淺水區的深淺不一能給航行帶來危險。