大工业城市的煤烟与尘垢的英文

the soot and grime of a big manufacturing town

• 大:    big; large
• 工业城市:    industrial city; m ...
• 的:    4次方是 The fourth po ...
• 煤烟:    smoke from burning ...
• 与:    take part in; part ...
• 尘垢:    dust and dirt