试题题干
Translate the following sentence into Chinese.
The solid material, called sludge is converted into fertilizer. The sludge can also be made into bricks.
参考答案
试题解析
考点：sludge (n.) 淤泥，污泥 ；convert (v.) 使转化；brick (n.) 砖块。
句子结构：第一句主干为The solid material is converted into fertilizer，called sludge修饰material。第二句为一个简单句。