The 23rd district is immense, at about 14,700 square miles (38,000 square km).

第23届区很大，约14,700平方英里(38,000平方公里)。

youdao

Area city, 199 square miles (516 square km); metropolitan area, 1, 907 square miles (4, 939 square km).

城区，199平方英里(516平方千米)，大都市区，1,907平方英里(4,939平方千米)。

youdao

It covers an area of just over 2m square km and contains an estimated 150,000 cubic km of groundwater.

它覆盖的面积只有200万平方公里多一点，但是据估测含有15万立方千米地下水。

youdao

Those who took part, surveyed over 108, 000 square km of the UK, submitted 147, 819 pages of articles and 23, 225 photos.

BBC: Revisit the BBC's 1986 Domesday project

About 2, 500 miles (4, 000 km) from the mainland, Hawaii has less than 6, 500 square miles (16, 800 square km) of land.

ECONOMIST: Planning for change in America's most expensive state

It is estimated that El Chapo controls at least 60, 000 square km (23, 000 square miles) of rugged mountains in Sinaloa and Durango.

FORBES: Mexican Billionaire Drug Kingpin "El Chapo" Guzman Named Chicago's Public Enemy No. 1