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(1)單元，整體(anything regarded as an elementary structural or functional constituent of a whole)[C]：the family as the～of society 作為社會細(xì)胞(單位)的家庭;work in the third～在第三組(科室)工作;study Book 3 U～4 學(xué)習(xí)第三冊第四單元;They form one～. 他們形成一個(gè)整體。The Hawaiian Islands form one political～. 夏威夷群島形成一個(gè)完整的政治區(qū)域。Each building is divided into/contains 50 (self-contained) housing (living)～s. 每座樓分為/包含50個(gè)(自成一體的)居住單位。～trust (BrE)(=AmE mutual fund)單位信托投資公司;〖同〗part，element，section，division， whole;

(2)(計(jì)量，計(jì)數(shù))單位(quantity adopted as a standard of measurement)[C]：The～of length is the metre. 長度單位是公尺。An ounce is a～of weight. 盎司是重量單位。The centimeter is a～of length.厘米是長度單位。The dollar is the standard～of money(currency) in America.美元是美國的標(biāo)準(zhǔn)貨幣單位。The degree Celsius is the～in which we measure temperature. 攝氏度是我們測量溫度的單位。a～price 單價(jià);SI～s 國際單位制;a bill for 50～s of electricity 50度電的賬單;〖同〗measure， measurement，quantity;

(3)部(分)隊(duì)(organized body of soldiers， varying in size and constituting a subdivision of a larger body)[C， Gp]：an army～ 軍隊(duì)小分隊(duì);a bomb-disposal～ 排彈部隊(duì);a～of highly-trained soldiers 受過嚴(yán)格訓(xùn)練的一隊(duì)?wèi)?zhàn)士;

(4)(成套設(shè)備的)裝置，(家具的)組合件(piece of apparatus serving to perform a particular function)[C]：a cooling/kitchen～制冷裝置/廚房用具;storage/X-ray～s 儲存/X射線裝置;～furniture 組合家具;〖同〗part，element，section;division，whole;

(5)個(gè)位(數(shù))，最小整數(shù)(any whole number between 1 and 9)[C]：a column for the tens and a colunm for the～s 一列十位數(shù)和一列個(gè)位數(shù);In the number 54，5 is a ten， and 4 is a～. 數(shù)字54中，5是十位，4是個(gè)位。

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