第182句：

Average income for a household of people of working age, by contrast, has fallen five years in a row.

相反，工薪阶层家庭的平均收入已经连续五年下降了。

六级词汇讲解:

本句是个简单句，主干是...income...has fallen...。for引导的介词短语for a household ofpeople ofworking age作定语修饰lncome，by contrast为插入语。

by contrast意为“相反；相比之下”。如：

Lucy seems prettier by contrast with her sister.

露西与她妹妹相比似乎更美些。

in a row意为“连续；成一排”。如：

This is the fifth day in a row that it's snowed.

这是接连第五天下雪了。

六级考点归纳：

与by contrast意思相近的短语还有：

by contrast with意为“和……形成对照；和……比起来”，后接名词或名词短语。如：

By contrast with his peer，Tom is much more intelligent.

和同龄人比起来，汤姆要聪明得多。

by comparison意为“相比之下”。如：

Beijing is larger by comparison.

相比之下，北京比较大。

on the contrary意为“正相反，恰恰相反”。如：

On the contrary，the housing price keeps going up after the reform.

正好相反，改革后，房价持续上涨。