“unsafety”可以造什么句，unsafety造句
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At last to control the occurrence of food unsafety events in the countryside by prevention and treatment.
Therefore the effects of local thickening of the flume bottom and temperature variation cannot be neglected, otherwise the calculation results of internal forces will be of unsafety.
The low volume-weight of the embankment dam is an factor of unsafety of Andi Reservoir Project.
Shopping online has its disadvantages, such as unsafety.
