1.   The refugees had very little to eat and no clean water.

2.   Three out of five people in developing countries have no easy access to clean water.

3.   Three out of five people in the Third World have no easy access to clean water.

4.   It is also important to have something that can clean water and kill bacteria, so water from other sources can be made safe to drink.

5.   New technology, for example the use of membranes, can also make it possible to clean water so that it can be recycled.

6.   Another aim of the renovation is to clean that water and dredge the moat, clearing away the thick piles of mud that have collected at the bottom.

7.   At least four species of native mussels, which help filter and clean water in the Rio Grande, are either vanishing or are already gone.

8.   Birds require balanced diets and constant access to clean water.

9.   But the company said it will further clean the water and add minerals.

10.   Clean water?

v. + water >>共 528
add 3.91%
drink 3.63%
use 3.24%
pour 2.70%
run 2.38%
have 2.11%
enter 1.99%
bring 1.96%
pump 1.93%
get 1.92%
clean 0.47%
clean + n. >>共 733
house 9.90%
room 2.92%
tooth 2.08%
water 1.92%
street 1.60%
toilet 1.44%
air 1.44%
floor 1.28%
window 1.28%
area 1.24%
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