31.   When it rains, water collects on the roads because drainage pipes are either blocked or absent.

n. + collect >>共 689
government 4.08%
company 3.40%
state 2.76%
people 2.71%
worker 1.70%
water 1.64%
police 1.59%
group 1.17%
investigator 1.11%
agency 1.06%
water + v. >>共 718
be 24.80%
come 2.96%
flow 2.74%
run 2.66%
recede 2.46%
rise 2.04%
have 1.62%
begin 1.36%
seep 1.36%
get 1.13%
collect 0.52%
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