v. + problem >>共 361
have 22.63%
solve 9.06%
cause 5.52%
face 3.36%
address 2.77%
create 2.61%
pose 2.36%
fix 2.32%
resolve 2.12%
discuss 1.64%
eliminate 0.41%
eliminate + n. >>共 1635
need 6.44%
job 3.31%
weapon 3.26%
problem 1.82%
team 1.78%
program 1.38%
risk 1.29%
possibility 1.27%
barrier 1.18%
tariff 1.16%
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