本期內容：
It is an "open question" whether or not US athletes will participate in the 2018 Winter Olympics in South Korea amid rising tensions with North, the US ambassador to the UN has said. Nikki Haley told Fox News that the US would take "every precaution" to ensure the safety of its athletes.The Games will be held in Pyeongchang, just 50 miles from the border that separates the North and South.

open question: 懸而未決的問題
amid：在……之中
rising tensions：不斷升級的緊張局勢
ambassador：大使
precaution：小心謹慎

想了解更多信息，請關注:
新浪微博：教書匠小夏
微信公眾號：教書匠小夏