动 （打结； 扣） tie，fasten，do up，button up；

[例句] 一脚蹬比系带鞋容易穿。 Slip-on shoes are easier to put on than lace-ups.

[例句] 用镶边、系带和流苏装饰朴素的床罩和窗帘。 Embellish basic covers and curtains with borders, ties and fringing.

system，systematic，economy，[电影]System；

[例句] 公路系统沿线有大型商场和快餐店。 Megamalls and fast food restaurants line the highway system.

[例句] 定期航班的数量正让空中交通指挥系统不堪重负。 The volume of scheduled flights is straining the air traffic control system.

relation，relationship，nexus，filiation；

[例句] 他们弄僵了同那个唯一懂行的人之间的关系。 They had alienated the one man who knew the business.

[例句] 他们把她与不同的男人扯上关系，包括大亨唐纳德·特朗普。 They've linked her with various men, including magnate Donald Trump.

contact，touch，connection，relation；

[例句] 友情是理解，不是妥协；是原谅，不是遗忘。即使不联系，感情依然在。 Friendship means understanding, not agreement. It means forgiveness, not forgetting.It means the memories last, even if contact is lost.

[例句] 我再次尝试联系我的表妹琼。 I tried again to get ahold of my cousin Joan.

[天] galaxy，galact-，universe ；

[例句] 他们把望远镜转向附近其他星系。 They turned their telescopes towards other nearby galaxies.

[例句] 类星体是遥远星系的极为活跃的核心体. Quasars are the highly energetic cores of distant galaxies.

Galactic System，galaxy，Milky Way system，Milky Way galaxy ；

[例句] 由此你可以算出银河系的总质量。 From this you can calculate the total mass in the Galaxy.

[例句] 银河系由1,000亿颗恒星组成。 The Galaxy consists of 100 billion stars.

[数] coefficient，ratio，modulus，quotient，quotiety ；

[例句] 摩擦系数 the coefficient of friction

[例句] 系数为1表示各个市场的步调完全一致。 A coefficient of one means the markets move perfectly in step.

series，succession，set，catena；

[例句] 古奇将举办时装发布会推出他们的秋装系列。 Gucci will be holding fashion shows to present their autumn collection.

[例句] 尼克·沙利文对这一季来自巴黎和米兰的时装系列作了预评。 Nick Sullivan previews this season's collections from Paris and Milan.

system，setup，hierarchy (system) ；

[例句] 新体系仍处于规划阶段。 The new system is still in the planning stages.

[例句] 他们说，当前的征兵体系应当逐步废除。 They said the present system of military conscription should be phased out.

linkage，connection，copula ；

[例句] 他们彼此紧密地连系着. They are closely interconnected.

[例句] 它反映了诸量之间的一种链式的连系. It reflects a chain - like interconnection between quantities.

moor (a balloon or airship)，mooring，makefast，moorage ；

[例句] 一些气球飞行家曾提到在舰上使用系留气球的问题. Some balloonists talked of using captive ', ballons from ships.

[例句] 为研究系留气球稳定性,建立了系留气球的三维非线性动力学模型. To stability analysis of tethered balloon, a three dimensional nonlinear mathematical model tethered aerostat was assembled.

paternal line，the father's side of the family，patriarchal ；

[例句] 不论是从父系或是母系来说她都是神的后裔. She was descended, through both parents, from the gods.

[例句] 一般来说 ﹐ 父系家族比母系家族要亲得多. Generally speaking, paternal side is closer as compare to the maternal side.

bloodline，stock，pedigree，genealogy，descent ；

[例句] 这个家族将自己的世系追溯到诺曼征服者. The family has traced its ancestry to the Norman invaders.

[例句] 他们的世系可以直接追溯到18世纪。 They can trace their lineage directly back to the 18th century.

genealogy，begats，family tree，geneal. ；

[例句] 这些树的系谱可以追溯到数千年前. These trees have pedigrees stretching back thousands of years.

[例句] 今天的冠军确实展现了其纯种系谱. The champions really showed their pedigree today.

frenulum，habenula，habena (pl. habenae)，fraenulum，chalaza ；

[例句] 一脚蹬比系带鞋容易穿。 Slip-on shoes are easier to put on than lace-ups.

[例句] 用镶边、系带和流苏装饰朴素的床罩和窗帘。 Embellish basic covers and curtains with borders, ties and fringing.

anchoring ；

[例句] 船的系泊绳索滑落，船漂向大海。 The boat slipped its moorings and drifted out to sea.

[例句] 船系泊到河岸 ( 的一根桩子 ) 上. The boat was moored to ( a post on ) the river bank.

axis，set of axes，shafting ；

[例句] 轴系中心定位块在那里. The center block for shafting alignment is over there.

[例句] 轴系连接螺栓和钻孔尺寸测量. Measuring dimension of shaft coupling bolts and reamer hole.

sexual intercourse，carnal knowledge，sexual relationships ；

[例句] 他想和马丁娜发生性关系。 The object of his amorous intentions is Martina.

[例句] 他还未到可以与人发生性关系的法定年龄。 He was under the age of consent.

family，ancestry，genealogy，stemma，stirp ；

[例句] 我们家系的实际创始人是我祖父的哥哥. The actual founder of my line was my grandfather's brother.

[例句] 根据家系的原理,这个事实即时可以得到解释. This fact is at once explained on the principle of descent.

tether，stakerope ；

[例句] 那头牛弄断系绳,跑到玉米田里去了. The cow had broken its tether and was in the cornfield.

[例句] 那牛弄断了系绳,跑到玉米田里去了. The cow had broken her tether and was in the cornfield.