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- The volcanics are most commonly andesitic in composition. 火山岩的组成最通常是安山岩。
- Periods of volcanism are indicated by the presence of pyroclastic material in the formation. 群系中火成碎屑物的存在表明了火山酌的形成年代。
- The three volcanics are of kalium alkaline series, with their chemical elements showing the same magma origin. 三种火山岩均属钾质钙碱性系列，岩石化学成分显示为同源岩浆产物。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Are you willing to stand surety for your brother? 你愿意当你弟弟的保证人吗？
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Modern paintings are not to my taste. 现代画不合我的口味。
- Her clothes are always right up to the minute. 她的衣服总是式样最新的。
- The temperature of volcanic gases is very high. 火山气体的温度很高。
- Her eyes are the most catching I have ever seen. 她的眼睛是我见到过的最迷人的。
- The children are playing on the swings in the park. 孩子们在公园里荡秋千。
- We should practice economy even if we are rich. 即使我们富裕了也仍应该厉行节约。
- Reading and writing are different skills. 阅读与写作是不同的技能。
- The tables are firmly fixed to the floor. 桌子都牢牢地固定在地板上。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The uses of this machine are manifold. 这台机器有多种用途。
- An agglomerate is a volcanic breccia. 集块岩是一种火山性角砾石。
- The place was recently visited by a serious volcanic eruption. 这地方最近发生了一次严重的火山爆发。
- Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment. 岩石化学特征表明火山岩形成于洋岛构造环境。
- The phenomena associated with volcanic activity. 火山现象与火山活动有关的现象
