all of which eventually flow out to the sea. 它们最终都流向大海
Fresh water from the jungle flows over the heavier salt water from the sea. 咸水来自海洋 比重较重 来自丛林的淡水在其上方流动
are a reminder of this link with the sea. 能说明石灰岩与海洋的关系
so although this rocky escarpment in the United States is now hundreds of metres above sea level 所以 尽管美国境内的这座石壁 如今矗立在海平面以上几百米高的地方
These extraordinary forests spring up throughout the tropics in these tidal zones where rivers meet the sea. 这些特殊的树林遍及整个热带地区的潮间带 那里正是河流的入海口
the journey to the sea is not always smooth or uninterrupted. 流向大海的过程也并非都是平缓连续的
but continue their journey to the sea. 而是一直奔向大海
Malawi may look like an inland sea, 马拉维湖看起来像大海一样辽阔