Urbanization is an unavoidable phenomenon, and may cause a far-reaching influence and a dual effect (both advantages and disadvantages).

城市化进程不可回避且影响深远，同时还具有正、负双重效应。

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It is of dual effect, having not only positive but also negative influences.

蓝色贸易壁垒具有双重效应，既有负面影响，也有正面影响。

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Psychological frustration is a common phenomenon among college students, which has a dual effect.

挫折是大学生普遍发生的一种心理现象，其作用具有两重性。

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The Internet has had a dual effect on the level of connectedness I feel with the people I know in my offline life.

FORBES: Does the Internet Make You More or Less Connected?

In theory, shifting the estimated 215, 000 houses these agencies hold nationwide to the rental market would have the dual effect of lifting sinking home prices and lowering rising rents.

FORBES: City Governments and the Great Housing Beyond

The Scots use this dual nationality to best effect when they emigrate.

ECONOMIST: Scottish nationalism