是由

• Your body is made of stardust !
  你的身体是由宇宙尘构成！
• The world is a globe of men .
  世界是由人构成的一个整体。
• Obstruction may be caused by chronic cicatrization .
  梗阻也许是由慢性瘢痕造成的。
• He was a foreigner , as i knew from his accent .
  他是外国人，那是由他口音知道的。
• Legal problems are very much andrew 's territory .
  法律问题主要是由安德鲁的辖域。
• The book was issued under his general editorship ...
  这本书是由他担任主编出版的。
• A contingency table is made up of rows and columns .
  列联表是由横行和纵栏构成的。
• The bending of the light rays is caused by refraction .
  光线的弯曲是由折射造成的。
• Gallstones are formed from the constituents of bile .
  胆石症是由胆汁的成分形成的。
• Cement is made from limestone .
  水泥是由石灰石造成的。