常用用法n. (名詞)sea的意思是“海,海洋”“海水”,是不可數(shù)名詞。在sea前的專有名詞前一般要加冠詞the。 sea作“水域,波浪”“海浪”“洶涌的波濤”解時(shí)須用復(fù)數(shù)形式seas。 返回 sea詞語辨析n. (名詞)at sea, by sea, by the sea, in the sea, on the sea這五個(gè)短語的意思不同。其區(qū)別在于：1.at sea的意思是“航行中”“作海員”“茫然”。例如:By the second day, the ship was well out at sea.第二天該船順利出航。He has two sons in the army, and a third at sea.他有兩個(gè)兒子在陸軍,第三個(gè)兒子當(dāng)水手。The man has a son at sea.這人有個(gè)當(dāng)水手的兒子。I felt completely at sea when I first arrived in this country.當(dāng)我初到這個(gè)國家時(shí),感覺全然迷惑了。We were all at sea until instructions arrived.接到指示前,我們都茫然不知所措。2.in the sea的意思是“在海里”。例如:Children were bathing in the sea.孩子們?cè)诤＠镉斡尽?/li>I bathed in the sea nearby twice a week.我曾在附近的海里一周游兩次泳。He used to bathe in the sea after supper.晚飯后,他經(jīng)常去海中泡水取涼。3.by sea的意思是“由海路”“乘船”。例如:The storm has interrupted all travel by sea.暴風(fēng)雨使所有海上旅行中斷了。Going by sea seems a good bet.乘船去似乎是恰當(dāng)?shù)倪x擇。Are you going out by sea?你是乘船出國嗎?I will go to Chicago by sea.我將乘船去芝加哥。4.by the sea的意思是“在海邊”。例如:They pitched camp by the sea.他們?cè)诤＿呍鸂I。The couple spent all day by the sea, and motored to the hotel in the evening.這對(duì)夫婦白天在海邊呆了一天,晚上乘車回旅館。The children enjoyed playing by the sea, kicking up the sand into each other's faces.孩子們喜歡在海邊玩耍,把沙子踢到伙伴的臉上。5.on the sea的意思是“在海上”,常與ship, boat, sail等連用。例如:Boats sail on the sea.船航行于海上。下面兩組中短語的意思不同：go to sea去當(dāng)水手go to the sea到海濱去all at sea迷失船位at full sea不知所措sea, ocean兩詞的意思不同,前者是海,后者是洋,在面積的劃分上,海是洋的一部分。sea，ocean這兩個(gè)名詞均可表示“?！敝?。sea普通用詞，可用復(fù)數(shù)形式表單數(shù)意義。sea所指的面積要比ocean小得多。sea也可是ocean的一部分。ocean指把海作為一個(gè)整體，是海的總稱，即海洋。 返回 sea