31.   US authorities retained the Venezuelan planes after they failed safety inspections.

32.   US authorities grounded the Venezuelan planes after they failed safety inspections.

v. + inspection >>共 258
conduct 8.33%
allow 7.10%
pass 4.87%
carry 4.16%
complete 3.46%
require 2.70%
resume 2.70%
order 2.70%
make 2.52%
perform 2.35%
fail 1.88%
fail + n. >>共 296
test 29.17%
school 5.62%
physical 4.61%
inspection 2.68%
exam 2.68%
health 2.51%
child 1.68%
time 1.68%
class 1.59%
student 1.51%
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