n. + say >>共 480
official 17.88%
police 6.16%
analyst 4.36%
report 3.78%
source 3.33%
spokesman 3.05%
company 2.65%
expert 2.16%
authority 1.82%
government 1.60%
engineer 0.04%
engineer + v. >>共 557
be 8.82%
say 7.90%
work 3.69%
have 3.41%
use 2.37%
try 2.21%
find 1.76%
believe 1.68%
design 1.20%
build 1.08%
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