hazards

1.the hazards of childbirth.

分娩的险。

2.Are you aware of the hazards of mountaineering?

你知道登山运动的险吗?

3.The report was considered to be the last word on the hazards of smoking.

这篇报道被认为是给吸烟的害下了定论

4.There are many hazards in a journey across Africa.

穿越非洲的旅行有许多险。

5.Objective To summarize the radiation hazards to crew of space flight and advancement in research of radioprotector.

目的综述国内外航天辐射害剂研究的进展,提出加强剂研究的建议。

6.In light of the hazards and uncertainties associated with subsurface waste disposal, deep well injection may create pollutional problems.

由于地表下废水处置的险性和不可靠性，深井注入也会产生污染。