形 white，plain，simple，quiet；名 vegetable，basic element，element；副 （素来；向来） usually，habitually，always ；

[例句] 这种药物通过提高大脑中血清素的含量来产生疗效。 The drug works by increasing levels of serotonin in the brain.

[例句] 目前有400万英国人是严格的素食者。 Four million Britons are now strict vegetarians.

[化] isotope，isotopes ；

[例句] 碳的诸多同位素 the many isotopes of carbon

[例句] 氚是最和缓的放射性同位素之一. Tritium is one of the mildest radioactive isotopes.

element，elementary substance，[数] [化] element ；

[例句] 斯蒂芬和我打算给那些爱情歌曲注入流行元素。 Stephen and I are going to jazz up the love songs.

[例句] 水果、蔬菜和全谷物富含钾元素。 Fruits, vegetables, and wholegrains are rich in potassium.

[化] cellulose，fibrin ；

[例句] 谷类食品、豆类、水果和蔬菜中含有纤维素。 Fibre is found in cereal foods, beans, fruit and vegetables.

[例句] 在孕期，含高纤维素的饮食越发地重要。 In pregnancy a high fibre diet is doubly important.

[生] pigment，pigmentum，colouring material，coloring matter ；

[例句] 我们这一系列的药草茶不含防腐剂、色素以及人工调味品。 Our range of herbal teas contain no preservatives, colourings or artificial flavourings.

[例句] 玻璃瓶中盛满了被食用色素染过色的水。 Glass bottles are filled with water tinted with food colourings.

[生理] hormone，incretion，internal secretion ；

[例句] 激素替代治疗非常重要，应该及早开始。 Hormone replacement therapy is very important and should be instituted early.

[例句] 激素植入物被用作生长辅助剂. Hormone implants are used as growth boosters.

vitamin(e)，auxohormome，nutramin(e)，citrin，vitamine ；

[例句] 黄油、人造黄油和多脂鱼都含有丰富的维生素D。 Butter, margarine, and oily fish are all good sources of vitamin D.

[例句] 可以买一种含蜂王浆、花粉和维生素C的配方产品。 You can buy a formulation containing royal jelly, pollen and vitamin C.

[化] halogen ；

[例句] 卤素也具有吸收紫外线和分解快这两种特性. Halogens also have the necessary absorption in the ultraviolet and rapid dissociation.

[例句] 强烈的胞内杀菌作用可以通过骨髓过氧化物酶 - 过氧化氢 - 卤素杀菌系统发挥威力. Potent intracellular bactericidal action may be exerted through the myeloperoxidase - hydrogen peroxide - halide bactericidal system.

[生]toxin，poison ；

[例句] 龙的毒素会引起瘫痪、肿胀和恶心。 Poison from the weaver fish causes paralysis, swelling, and nausea.

[例句] 问题在于废气中含有很多毒素。 The problem was that the exhaust gases contain many toxins.

[生] insulin，insulinum，iletin，trypsin ；

[例句] 为获利从动物体内提取胰岛素。 Insulin is produced commercially from animals.

[例句] 胰岛素是胰腺分泌的。 Insulin is secreted by the pancreas.

simple，plain，austerity，homeliness，simplicity ；

[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.

[例句] 她脱下了朴素的套装，换上了一身古怪的少女装。 She swapped her plain suit for an absurdly girlie dress.

alizarin(e) ；

[例句] 在茜素染料法中,氟化物的消色作用较慢. The bleaching action of fluorides is slow in the alizarin dye procedure.

[例句] 茜素一种桔红色的晶体化合物, C14H6O2 ( OH ) 2, 用于制造染料. An orange - red crystalline compound, C 14 H 6 O 2 ( OH ) 2, used in making dyes.

essential factor，key element，part，element，basic ；

[例句] 这次会议具备了作为高度戏剧性的政治事件的一切要素。 The meeting had all the ingredients of high political drama.

[例句] 我认为取得成功唯一的共同要素是勤奋。 I think the only common denominator of success is hard work.

factor，element，complication，diathesis，equation ；

[例句] 管弦乐编曲还要考虑其他因素。 There were also other factors that entered into the orchestration.

[例句] 毫无疑问，政治和经济因素在其中起了作用。 Undoubtedly, political and economic factors have played their part.

heparin ；

[例句] 肝素为最广泛应用及最可靠的抗凝剂. Heparin is the most widely used and reliable anticoagulant.

[例句] 肝素为首选的治疗剂. Heparin is the treatment of choice.

[生化] chlorophyll，phyll-, phyllo-，chlorophyl ；

[例句] 光对植物的叶子发生作用从而产生叶绿素. Chlorophyll is produced by the action of light on the plants'leaves.

[例句] 这一病害使叶绿素遭到不同程度的破坏. The disease causes varying degrees of destruction of the chlorophyll.

androgen ；

[例句] 用雄激素制止泌乳. Lactation is suppressed by administration of androgens.

[例句] 位于精细管之间的同质细胞 ( 莱代细胞 ) 产生雄激素. The intersitial ( Leydig ) cells which lie between the tubules are the source of the male hormone.

[药] penicillin，penethamate ；

[例句] 我应当让他给我打一针青霉素的. I should have asked him for a shot of penicillin.

[例句] 她给病人注射了青霉素. She injected the patient with penicillin.

（事物本来的性质； 素养） quality，diathesis，making，stuff ；

[例句] 他想引进具有领导素质的成熟人才。 He wanted to introduce mature people with leadership qualities.

[例句] 他对该行业中新人的低素质予以了批评。 He deprecated the low quality of entrants to the profession.

Russell ；

[例句] 他信奉罗素的哲学. He believed in the philosophy of Russell.

[例句] 从前张崧年先生译过一篇罗素的论文. Mr Zhang Songnian once translated an essay by Bertrand Russell.