21.   Successive blasts could be heard at short intervals in the western Petrinja suburb of Moscenica, with Croatian shells appearing to outnumber Serb shells.

22.   Streets were cleared by the police and army, and the vehicle was blown up by bomb disposal experts after a short interval.

a. + interval >>共 128
regular 34.45%
frequent 5.12%
brief 4.59%
short 3.89%
irregular 3.71%
long 3.18%
decent 3.18%
longer 1.77%
weekly 1.77%
sunny 1.77%
short + n. >>共 766
term 9.40%
program 3.75%
period 3.45%
supply 3.21%
run 2.98%
distance 2.87%
notice 2.38%
time 2.05%
while 1.69%
game 1.52%
interval 0.14%
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