21.   The attack came hours Tiger guerrillas blasted power pylons in north-eastern Sri Lanka, cutting off electricity and stepped up attacks in the region.

22.   The guerrillas blasted rebel songs in the other direction over loudspeakers.

n. + blast >>共 300
warplane 11.78%
critic 3.30%
jet 3.19%
group 2.64%
music 2.64%
guerrilla 2.42%
gunship 2.42%
official 1.98%
rocket 1.87%
bomb 1.65%
guerrilla + v. >>共 658
fire 7.81%
attack 6.22%
be 4.77%
kill 4.00%
ambush 2.86%
fight 2.59%
detonate 2.49%
say 2.24%
use 2.15%
launch 1.28%
blast 0.40%
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