WASHINGTON, Feb. 10 (Xinhua) -- A U.S. federal judge on Monday extended a pause on the deadline for roughly two million federal workers to accept the Trump administration's "buyout" offer, which gives ...

在美中两国的交锋中，常常听到芬太尼。尤其近日美中打响贸易战，美国总统特朗普反复施压，表示“希望中国停止向我们输送芬太尼，如果不停止，关税将大幅提高”。那么芬太尼（fentanyl）是什么？为什么美国会在这个问题上指责中国，甚至对美中关系产生巨大影响？

The Department of Finance said in a news release that the first phase of Canada's response to unjustified US tariffs on ...