1.
a population density of 50 per square kilometer
每平方公里五十人的人口密度
2.
Scarcely 30 Km2, Macau is home to half a million people.
澳门的居住人口约是五十万人人的家园，面积接近三十平方公里。
3.
Ghana has a population of 11,000,000.Its land area is 238,538 square kilometres.
迦纳有人口一千一百万。二十三万八千五百三十八平方公里。
4.
The area has a population density of five people per square mile
该地区人口密度为每平方英里五人
5.
The area had a population density of five people per square mile.
该地区人口密度为每平方英里五人。
6.
The city covers an area of 15 square kilometers.
该城市的面积为十五平方公里。
7.
The speed of the car was 85 kilometres per hour.
这汽车的速度是每小时八十五公里。
8.
This city now has ten development districts, 18 square kilometers of developed area, 580 introduced projects, and 1.5 billion US dollars of contracted foreign capital.
该市现有开发区十个，已开发面积十八平方公里，引进项目五百八十个，合同外资十五亿美元。
9.
Some 95 percent of Antarctica is covered by an icecap averaging 1.6 km (1 mi) in thickness.
约百分之九十五的地方被平均厚度为1.6公里（1英里）的冰层覆盖。
10.
Through unequal treaties, Russia seized more than 1.5 million square kilometres of Chinese territory.
沙俄通过不平等条约侵占的中国土地，超过一百五十万平方公里。
11.
Average Revenue Per Passenger-Kilometer
每延人公里平均收入
12.
A: The rental fee is two hundred and fifty Hong Kong dollars per square foot.
租金是每平方英尺港币二百五十元。
13.
The overall population density per square kilometre was 6160 in 1997.
一九九七年，全港人口密度为每平方公里6160人；
14.
The highway density increased from 12.1 km to 14.6 km per 100 square km.
公路密度由每百平方公里12.1公里提高到14.6公里。
15.
At a guess I should say we are speeding at fifty miles an hour.
我猜测我们正以每小时五十公里的速度在前进。
16.
At a guess I shall say we are speeding at fifty miles an hour
我猜测我们正以每小时五十公里的速度在前进
17.
dad step on the gas and the car speed up to 150 kph
爸一踩油门,车速冲到每小时一百五十公里
18.
Dad stepped on the gas and the car sped up to 150 kph.
爸一踩油门,车速冲到每小时一百五十公里。