敌军对这座城镇进行了长达三天的猛烈炮击。
The enemy carried out three days of intense ___bombardment on the town.
村民们躲在地下室躲避连续不断的炮击。
The villagers hid in the basement to escape the continuous ___bombardments.
服务器因大量用户同时访问而崩溃了。
The server crashed under the ___bombardment of simultaneous user requests.