61.   When ants leave a source of food, they take a mental picture of it.

a. + picture >>共 1401
big 5.53%
different 3.18%
best 2.72%
clearer 2.13%
clear 1.84%
bigger 1.56%
new 1.49%
latest 1.41%
complete 1.24%
pretty 1.16%
mental 0.82%
mental + n. >>共 642
health 25.97%
problem 3.44%
disorder 3.30%
institution 3.30%
toughness 2.67%
state 2.53%
note 1.74%
mistake 1.39%
picture 1.18%
disability 1.16%
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