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- A physiologically active amine,C5H9N3,found in plant and animal tissue. It is released from cells of the immune system in human beings as part of an allergic reaction. 组胺具生理活性的胺类，C5H9N3，发现于植物或动物组织内。作为过敏反应的一部分由人体免疫系统细胞释放。
- A physiologically active amine, C5H9N3, found in plant and animal tissue. It is released from cells of the immune system in human beings as part of an allergic reaction. 组胺具生理活性的胺类，C5H9N3，发现于植物或动物组织内。作为过敏反应的一部分由人体免疫系统细胞释放
- Asymmetric addition of organometallic reagents to imines is a fertile method for the synthesis of optical active amines, an important class of compounds in biochemistry as well as in pharmaceutics. 摘要手性胺类化合物是一类重要的有机化合物，在生物化学及药物合成中有广泛应用。有机金属化合物对亚胺的不对称加成反应是合成手性胺类化合物的重要方法之一。
- A useful trade is amine of gold. [谚]一技在身犹如金矿在手。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- He was disabled when on active service. 他在战斗中受伤致残。
- Ms. Brown is active in the party. 布朗女士在晚会上很活跃。
- The active boy was extremely distractible. 那好动的男孩极不专心。
- His lame foot disqualified him for active work. 跛脚使他无法参加积极活动。
- He's very active for an elderly man. 作为老年人，他是非常活跃的。
- She is very active for an octogenarian. 她已经是八旬老人了，还很精神。
- She is much the most active member in our group. 她绝对是我们组最活跃的成员。
