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- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- 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。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- 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。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Measure the diameter of this circle. 量一下这圆的直径。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
- 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。
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- 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。
