71.   The police have not said whether there were any distinctive features which could identify the perpetrators.

a. + feature >>共 1272
new 7.89%
standard 1.93%
special 1.92%
main 1.81%
regular 1.72%
common 1.69%
facial 1.65%
important 1.51%
key 1.48%
animated 1.34%
distinctive 1.25%
distinctive + n. >>共 698
feature 4.31%
style 4.13%
voice 3.09%
flavor 3.03%
sound 2.55%
pattern 2.31%
character 1.58%
taste 1.52%
look 1.40%
characteristic 1.33%
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