You can also join a livestream or on-demand exercise class.

你也可以参加直播或点播的运动课程。

youdao

There is huge pent-up demand as a new middle class takes to the road.

新中产阶级进入买车的行列，释放了压抑许久的巨大需求。

youdao

Rising world food prices are the result of a number of factors including higher transportation costs, drought, and increased demand from a growing middle class in China and India.

世界粮食价格上涨是多种因素造成的，包括运输成本的提高、干旱，以及中国和印度日益增长的中产阶层需求的增加。

youdao

Aircraft consultant Richard Aboulafia says while air travel appears to be making a comeback, demand for first class tickets remains sluggish and airline revenues are well below 2008 peak levels.

VOA: standard.2010.03.30

And it likely would not have happened if the responsible governmental regulators had the capacity and will to demand world class safety standards.

CNN: STORY HIGHLIGHTS

Midweek flights typically have lower demand for business class, and so more opportunity for auctions.

WSJ: El Al, Virgin Atlantic Are Airlines That Auction Upgrades to Business Class

Demand for first class and business class typically follows business confidence, according to the International Air Transport Association, which publishes a monthly premium traffic report.

WSJ: El Al, Virgin Atlantic Are Airlines That Auction Upgrades to Business Class