片语
natural calamity materials自然灾害资料
natural disasters自然灾害,自然灾难;天灾
natural l calamity自然灾害
crime with natural calamity自然灾害与犯罪
urban natural calamity论自然灾害
lose from natural calamity自然灾害损失
Best of Natural Calamity唱片名
extraordinary serious natural calamity非常严重的自然灾害
Natural calamity monitoring自然灾害监测
natural hazards自然灾害,自然风险
Natural Disaster and Calamity天灾