组成

• It consists of a pair of concentric cylinder .
  它由一对同轴的圆筒组成。
• An engine lathe consists of a number of parts .
  普通车床由若干部件组成。
• A machine consists of a lot of parts .
  机器是由许多零件组成的。
• The united states congress is a bicameral body .
  美国国会由两个议院组成。
• The surface material consists of drift .
  表层介质是冰碛组成的。
• They formed a group for beginners in english .
  他们组成了一个英语初级班。
• What does the terrigenous sediment consist of ?
  陆源沉积物是由什么组成的？
• Septa are constructed from muscle fibres .
  隔膜由肌纤维组成。
• Animal bodies are made up of cells .
  动物身体是由细胞组成的。