“The arrest of Meng Wanzhou, a top executive at one of China’s most strategically important companies, on the same day that President Trump and China’s president, Xi Jinping, declared a 90-day “truce” in their trade war, is a diplomatic curveball that may fulfill some national security goals but could complicate upcoming trade talks with Beijing.”
由于路线难以捉摸，曲球常常让击球手头疼不已。Curveball一词也渐渐融入美国人的日常生活中，剑桥词典将其解释为“something such as a question or event that is surprising or unexpected, and therefore difficult to deal with”（意料之外、突然发生的难以解决的问题或事件）。人们还常使用“throw a curveball”这一短语，来表示出其不意地刁难人。
