The regime continued its crackdown by shelling rebel areas .

叙政权炮击反叛地区，持续其镇压。

The government has denied shelling the area .

但政府否认炮击这一地区。

Wednesday 's action didn 't involve shelling .

周三的军事行动并未进行炮击。

Chinese shelling continued at intervals until 1978 .

此后中国大陆的炮击断断续续，直到1978年。

Shelling could quickly cripple it .

炮击会很快让这条管道瘫痪。