新聞來源: http://www.bbc.co.uk/news/world-asia-44207986
內文
US President Donald Trump has said a historic summit with North Korea's Kim Jong-un next month may be delayed.
He was speaking as he received South Korea's President Moon Jae-in at the White House to discuss the summit.
Mr Moon is "likely tell President Trump what to expect and what not to expect from Kim", the South Korean news agency Yonhap reports
Last week the North said it might cancel if the US insisted on it giving up nuclear weapons unilaterally.
備註: 南韓跟美國正在討論該用什麼姿態回應北韓近期的嗆聲。