n. + be >>共 1635
problem 0.82%
people 0.79%
company 0.71%
result 0.67%
thing 0.63%
report 0.57%
question 0.56%
official 0.55%
time 0.53%
issue 0.48%
treatment 0.07%
treatment + v. >>共 341
be 37.43%
work 4.39%
have 2.71%
include 2.64%
involve 1.83%
help 1.80%
begin 1.72%
make 1.57%
fail 1.53%
require 1.15%
每页显示:    共 974