Experts say a reduction of only four or five percent in body water leads to a drop of twenty to thirty percent in work ability.

VOA: special.2010.07.27

He's got four essences: Earth, fire, water, air.

他认为世界有四大元素，土，火，水，气。

麻省理工公开课 - 固态化学导论课程节选

Use eight drops of unscented liquid bleach for every four liters of water.

VOA: special.2010.07.19

For four days, the wounded lay on the battlefield crying for help,for water.

VOA: special.2009.11.26

The doctor filled the four glasses with water from the Fountain of Youth.

VOA: special.2010.10.23

A World Bank report issued this year says the average Israeli gets four times as much water as the average Palestinian.

VOA: standard.2009.08.01

He said the water was as high as four meters. Indonesian authorities say torrential rains were too much for the Dutch colonial era dam.

VOA: standard.2009.03.27

Water in the South Korean portion of the Imjin River surged Sunday more than four and a half meters, about twice its usual level.

VOA: standard.2009.09.07

The same four essential ingredients - flour,water,yeast and salt - can yield 10,000 different combinations.

VOA: standard.2010.07.16