sea 中文

[siː]

[-iː]

名海维海

海，是占地球表面积70.8%的咸水。海洋调节着地球的气候并在水循环、碳循环、氮循环发挥了中的极其重要的作用。尽管人类从史前时期就开始在大海中旅行并探索未知的海域，但现代海洋学研究始于19世纪70年代英国的挑战者号远征。
由于大陆漂移，现今北半球几乎是被陆地和海洋平分（约2：3的比例），而南半球多是海洋（约1：4.7的比例）。开阔海域的海水盐分约为3.5%，不同的水域盐分有所不同。海水的固体组成约为85%为钠和氯。
以往海平面的變化留下了大陆棚，也就是靠近陸地，海水深度較淺的區域。此區域的海水有豐富的養份，因此可以滋養海洋生物，也是人類食物的來源之一，稱為海鮮。海鮮主要以魚為主，也包括貝類、海洋哺乳動物及海藻，可能是捕獲的，也可能是人工養殖。在熱帶珊瑚礁附近的海域是多樣性最高的區域。

Definition of sea in English Dictionary

名词 (Noun)PLseas
1. (countable, uncountable) A large body of salty water. (Major seas are known as oceans.).
更多范例
1. 用于句中
  - Steller's sea cow was overhunted and became extinct in the 18th century.
  - The view from the top, over the sea to the islands, simply takes your breath away.
  - The young birds cry out for food, and the parents returning from the sea manage to pick out their own amid a mass of look-alikes.
2. 用于句首
  - sea bed; river bed; lake bed; There's a lot of trash on the bed of the river. ‎
3. 用于句尾
  - The mangrove becomes a solid barrier there, which by its strong, arched and labyrinthine roots collects the sweepage of the fresh water and the salt and holds back the parent sea.
  - The children were splashing each other playfully in the sea.
  - “Waves Against the Sand,” to music by Martinu, which opened the program, filled the stage space with whorling patterns of dancers surging with the gentle but ceaseless momentum of the sea.