the salt water that covers most of the earth's surface and encloses its continents and island
The fleet could have been..ready for sea.
Fought battles by sea as well as by land.
出自： Ld Macaulay
A neat bungalow a stone's throw from the sea.
The first scent of the sea,..heavy with a fish-like smell.
出自： C. Francis
误 The knowledge sea is deep and broad.
正 The sea of knowledge is broad and deep.
析 sea不受其他名词修饰,但sea of可修饰其他名词,如 a sea of faces (无数面孔), a sea of troubles (无穷的麻烦), a sea of red flags (红旗似海)等,都是形容数量之多。
误 He went to sea for his vacation.
正 He went to the sea for his vacation.
析 go to the sea(= go to the seaside)表示“到海边去”, go to sea(= become a sailor)表示“出海,当水手”。
误 We often swim on the sea.
误 We often swim at sea.
正 We often swim in the sea.
析 “在海里游泳”是swim in the sea, at sea指在海上航行, on the sea指“在海上,在海边”。
误 About three quarters of the Earth is covered by seas.
正 About three quarters of the Earth is covered by sea.
析 sea表示“海水”时为不可数名词; 但当 sea 作“海浪”或“汹涌的波涛”解时多作复数。
误 I can't understand this problem; I'm all at the sea.
正 I can't understand this problem; I'm all at sea.
析 sea 往往和all 或completely连用,构成 be all〔completely〕 at sea的结构,表示“茫然”“摸不着头脑”, sea前面不加冠词。