显然，不是每一个人都相信青藏铁路面临迫切的危险的。
Clearly, not everyone believes the railway is in imminent danger.
它可不开挖跨路面、铁路和河流铺设下水道，煤气管和电缆管路等，结构简单、工作方便、施工费用低。
It can be used in the laying of sewage, gas pipe or electric cable tunnel without opening the road surface, railroad or riverbed. It is of simple construction, easy operation and low cost.
但是这个工作使人担心变暖的土地可能导致铁路路面拱起。
But the work raises concerns that the warming ground could lead to a buckling of the railway.
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