sea /siː/ star4 CET4 TEM4 (seas)

• 1.  

  N-SING（单数型名词） Thesea is the salty water that covers about three-quarters of the Earth's surface. 海洋 ['the' N, also 'by' N]

  例：

  Most of the kids have never seen the sea.

  这些孩子中的大多数从没见过大海。

• 2.  

  N-PLURAL（复数型名词） You use seas when you are describing the sea at a particular time or in a particular area. (某时、某区域的) 海 [文学性]

  例：

  He drowned after 30 minutes in the rough seas.

  他在波涛汹涌的海里挣扎了30分钟后溺死了。

• 3.  

  N-COUNT/N-IN-NAMES（） N-COUNT/N-IN-NAMESA sea is a large area of salty water that is part of an ocean or is surrounded by land. (作为海洋的一部分的或陆地围起来的) 海

  例：

  ...the North Sea.

  …北海。

• 4.  

  PHRASE（习语） At sea means on or under the sea, far away from land. 在海上; 在海里

  例：

  The boats remain at sea for an average of ten days at a time.

  这些船平均每次在海上呆10天。

• 5.  

  PHRASE（习语） If you go or look out to sea, you go or look across the sea. 到海上/向海上

  例：

  ...fishermen who go to sea for two weeks at a time.

  …每次出海两周的渔民们。