Through thick and thin, they have always been my precious team mates, advisers, and above all, friends.
我們同甘共苦,親如伙伴,他們是我的軍師,更是我的朋友。
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。