While a large number of methods have been established for numerous problems, many challenges remain to be solved.

即便已经建立了很多方法来处理层出不穷的问题，依然还需要面临许多挑战。

youdao

While a large number of products are currently available success rates for permanently giving up tobacco are varied.

虽然现在有大量戒烟产品上市，但是永久戒烟的成功率大不相同。

youdao

The United States was concerned about speaking publicly about military options while a large number of Americans remained in Libya.

美国曾对公开谈论军事行动持审慎态度，当时在利比亚尚有大批美国公民滞留。

youdao

While a large number of patrons still frequent the famed restaurants on Soi Texas (located a few hundred metres into Yaowarat Road), the crowds start to fade and eventually disappear the further you get from the main thoroughfares.

BBC: Travelling back in time through Bangkok��s Chinatown

While aggregators can push content to a large number of digital service providers (DSPs), only relatively few may be able to actually sell the label's recordings, and the label may actually be able to deliver its content to these DSPs itself.

CNN: Distributing music independently online

There are currently around 92 ivory seizures a month worldwide, while the number of large hauls of more than one ton has almost doubled in the past eight years.

CNN: Elephants at risk from gangs, eBay