The between-city effect was smaller than the within-city effect, the authors note.

作者解释说，城市间的影响要比城市内的影响小。

youdao

Please write about the effect of tree planting on air in a city.

请写写植树对城市空气的作用。

youdao

The urban heat island effect is more pronounced when forest rings a city.

因此当一所城市被森林环绕，其城市热岛效应会更明显。

youdao

They found that a city with only white rooftops could reduce the urban heat effect by thirty-three percent.

VOA: special.2010.03.02

"If all the investment now will be done in the city where there are huge needs to reconstruct all the infrastructure, where there will be a lot of demand in terms of construction work, then you will have again a pull effect from the rural areas back into a city that is not ready to absorb a lot more people than they have today."

VOA: standard.2010.07.16

Tom Hayden, who challenged Mr Riordan in the latest mayoral election, argues that the city is in effect governed by a clique of rich white men.

ECONOMIST: Los Angeles

"If approved, the city's proposal would take effect six months after Board of Health approval and would be enforced by the city's regular restaurant inspection team, " a statement from Bloomberg's office said.

CNN: SHARE THIS

"If approved, the city's proposal would take effect six months after Board of Health approval and would be enforced by the city's regular restaurant inspection team, " a statement from Bloomberg's office said last month.

CNN: New York ban on sugary drinks goes to public comment stage