natural hazard/amn

11.   He said signs now warn people about natural hazards, and that rescue teams patrol the area.

a. + hazard >>共 229 个
potential 14.17%
environmental 12.24%
serious 3.58%
possible 2.61%
choking 2.20%
major 2.06%
real 1.93%
natural 1.51%
biggest 1.51%
chemical 1.38%
natural + n. >>共 838 个
disaster 6.84%
cause 3.94%
world 2.04%
habitat 2.04%
beauty 2.03%
light 1.67%
environment 1.17%
process 1.07%
order 0.94%
phenomenon 0.87%
hazard 0.11%
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