▍原文 While thorny issues like Taiwan may surface, the main focus of the September 24 meeting is whether the top leaders of the US and China will signal an extension to a trade truce struck last year, which is set to expire in November. AI cooperation may also be on the agenda. US and Chinese economic officials discussed creating a communication channel for AI concerns at meetings on September 20. ▍語言點 thorny /ˈθɔːrni/ adj.（本文）棘手難辦的；多刺的 a thorny problem 棘手的難題；多刺的 surface /ˈsɜːrfɪs/ v. 出現，浮現（本文指被提及，成為討論議題） the main focus 主要的焦點 signal v. 釋放信號、傳遞意涵 extension n. 延長、延期 truce /truːs/ n. 停戰、休戰 trade truce 貿易休戰 strike /straɪk/ v. 達成（協議、休戰等） strike a deal 達成協議 strike a truce 達成休戰 be set to do 即將、注定要 expire /ɪkˈspaɪə/ v. 到期、期滿 agenda /əˈdʒendə/ n. 議程、待辦事項清單 be on the agenda 在議程上、被提上日程 channel n. 渠道、通道、頻道 concern /kə...