indentical a.相同的,同等的; 同一的
    My opinion are not always identical with my parents's. ;我的意見并不總是和父母 的意見相同.
    All eggs look similar, but no two eggs are identical, ;所有雞蛋看上去相似, 但沒有兩只雞蛋是完全 相同的
    Leonardo da Vinci's teacher once said to him. ;達芬奇的老師曾經(jīng)告訴 他說.
    inferior n.下級,下屬 a.劣等的,次的;下級的
    No inferior products should be allowed to pass. ;決不能讓任何次品漏網(wǎng).
    In the past,women were regarded as inferior to men. ;過去,人們認為女人不如 男人.
    launch n.發(fā)射;(船)下水 (新產(chǎn)品)投產(chǎn)
    The first artifical satellite was launched by the former Soviet Union, ;前蘇聯(lián)發(fā)射了第一顆人 造衛(wèi)星,
    launch vt.發(fā)射;發(fā)起(運動) 推出(產(chǎn)品);使開始 從事;使(船)下水
    which shocked the United States. ;讓美國人大驚失色.
    mechanism n.機械裝置;機制,機理; 辦法,途徑
    The bones and muscles are parts of the mechanism of the body. ;骨骼和肌肉是人體的組成 機體.
    The shell of my watch is transparent and the mechanisms inside can be seen. ;我的手表外殼是透明的, 可以看見里面的機械 裝置.
    match n.比賽,競賽;對手,敵手; 匹配,相配的人(或物); 火柴
    The prince and princess in the fairy tales ;童話中的王子與公主
    match vt.和...相配, 和...相稱, vi.相配,相適合
    are always perfectly matched(=were always a perfect match). ;永遠都是天造地設(shè)的 一對.
    The White Swan Hotel in Guangzhou can't be matched for friendliness. ;廣州白天鵝賓館良好的 服務(wù)態(tài)度是無與倫比的.
    These shoes do not match;one is large and the other is small. ;這雙鞋不相配,一只大, 一只小.
    negative a.否定的; 反面的,消極的; 負的,陰性的
    negative n.負數(shù);(照相機的) 負片,底片
    He was suspicious of having taken dopes,but his urine test was negative. ;他被懷疑服用了興奮劑, 但他的尿樣檢測卻是呈陰 性的.
    Two negative makes a positive. ;負負得正.
    obligation n.義務(wù),責(zé)任
    To pay taxes is an obligation of every citizen. ;納稅是每一個公民的 義務(wù).