The IUCN red list identifies polar bears as a vulnerable species, citing global climate change as a "substantial threat" to their habitat.

世界自然保护联盟红色名录已经将北极熊确定为渐危物种之一，将全球气候变化定义为影响北极熊栖息地改变的“潜在杀手”。

youdao

However, substantial amounts of urban garbage are dumped and buried at the surface, which constitutes a serious pollution threat to the groundwater source.

但其地表堆埋了大量的城市垃圾，对地下水源构成严重的污染威胁。

youdao

The meaning and extension of security, the source of security threat, and the object of security as well as the means of defending security all require substantial theoretical modifications.

安全的内涵和外延、安全威胁的来源、安全主体以及维护安全的手段都需要从理论上加以修正。

youdao

"We must notify the media organization in advance unless doing so would pose a substantial threat to the integrity of the investigation, " it said.

CNN: AP blasts feds for phone records search

The report said that Nasa's space shuttles, designed in the 1970s, were not built to withstand bombardment by orbital debris because such objects were not then recognised as a substantial threat.

BBC: Was Columbia struck by space debris?

"It's hard to imagine that there was a substantial threat to an investigation of past events that would warrant not giving AP a chance to go to court on this issue, " he said.

CNN: SHARE THIS