31.   It works on behalf of vulnerable children in developing countries and has mounted campaigns against pedophilia and child pornography.

32.   The Internet also gives sex exploiters easy access to vulnerable children -- especially lonely or troubled teens -- by tuning in to chat groups.

a. + child >>共 771
young 11.37%
small 5.30%
first 2.76%
older 2.27%
only 2.06%
the 1.88%
poor 1.87%
younger 1.76%
second 1.53%
grown 1.42%
vulnerable 0.15%
vulnerable + n. >>共 400
people 6.61%
area 5.17%
group 4.58%
position 3.05%
child 2.71%
woman 2.29%
population 2.29%
spot 1.95%
member 1.95%
target 1.61%
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