1. People began forming into little talkative groups.
   人们开始一组一组地聚在一起议论。
2. They were a group of early navigators.
   他们是一群早期的航海家。
3. She purports to represent the whole group.
   她自称代表整个团体。
4. Incomputable, cancer cell forms cancer cell group.
   癌症患者体内到底有多少个癌细胞？
5. The data can be grouped under three heads.
   这些资料可以分为三大类。
6. Increasingly deep cleavages separate one age group from another.
   愈来愈深的分歧使不同的年龄群互相分离。
7. The psychotherapy is carried out in small interactive groups.
   这种心理治疗是在互动的小组之间进行的。
8. Acting with an amateur theatrical group can be fun.
   和业余戏剧小组一起演出可能是有趣的。
9. They were completely powerless against such a large group.
   他们完全没有能力对抗一个这么大的组织。
10. All undergraduates reading English attend a turtorial group each week.
    所有攻读英语的本科生每周上一次导师辅导课。
11. The controversial experiment involved secretly filming a group of children.
    那个有争议的试验涉及对一群儿童的秘密拍摄。
12. This dispute led to the formation of a new breakaway group.
    这次争论使一部份人另立门户，成立了一个新的团体。
13. As he walked through the lobby, he skirted a group of ladies.
    他穿过门厅时, 绕过了一群女士。
14. Miners are a high risk group for certain types of gastric cancer.
    矿工是极易患某几种胃癌的高风险人群。
15. The prime mover in setting up the group was ex-lawyer James Stanley.
    这个团体的发起者是做过律师的詹姆斯·斯坦利。
16. Glycolipids (glycosyldiacylglycerols) are diacylglycerols with a sugar attached to the unesterified hydroxyl group.
    糖酯类物质是由甘油二酯和糖结合未酯化的羟基形成的。
17. Reduction of azides is an important method to introduce amino group to organic molecules.
    叠氮还原是向有机分子中引入氨基的重要方法。
18. My preference is that we (should) challenge the other groups to a friendly competition.
    我喜欢向别的组挑战, 来一个友谊竞赛。
19. The results indicated that there were twelve groups of soil fauna, Arthropoda,Mollusca,Annelida etc.
    土壤动物有节肢动物门、软体动物门、环节动物门等12个目或类。
20. Aloe chromone is a group of anti-inflammatory and anti-tyrosinase constituents found in aloe vera leaves.
    芦荟色酮是在芦荟叶中特有的一类具有抗炎和抑制酪氨酸酶等作用的活性物质。

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