You might need an activity that does nothing at all, such as when you have a construction that requires an activity, but there is no work to be done.

您可能需要一个根本不执行任何工作的活动，例如，当您拥有一个需要某个活动的构造，但没有要执行的任何工作时。

youdao

Applications for building permits, an indicator of future construction activity, also fell.

建房申请，也是未来建筑活动的指向标，也在下降。

youdao

The firm expects construction activity to slump 30% in 2009, after a 9% expansion in the first nine months of this year.

这家公司预计在今年的前九个月9%的增长过后，2009年建设活动会下降30%。

youdao

He said Israel must stop all settlement activity, including construction to accommodate natural growth.

VOA: standard.2009.09.13

"Construction activity generally, general construction, civil engineering and housing, have a vital, dynamic effect on getting an economy going, " he said.

BBC: Construction Employers Federation decry fall in NI jobs

Strong FAI is bullish for commodities demand as increased industrial activity and construction gobbles up more cement, iron ore, crude oil and copper.

FORBES: China Bull Still Runs Strong Even If Slower

However, our perusal of activity in many markets points to mostly build-to-suits in construction activity.

FORBES: Real Estate Forecast 2013-2014: Commercial Properties