US President Donald Trump on Saturday threatened to impose a 30 percent tariff on imports from Mexico and the European Union starting on August first, as experts warn that trade disputes and policy shifts are putting the global economy under strain. 美國總統唐納德·特朗普週六威脅要從8月1日開始對來自墨西哥和歐盟的進口商品征收30%的關稅，因為專家警告說，貿易爭端和政策轉變正在使全球經濟面臨壓力。 In an escalation of a trade war that has angered allies and rattled investors, Trump announced the latest tariffs in separate letters to European Commission President Ursula von der Leyen and Mexican President Claudia Sheinbaum that were posted on his Truth Social platform on Saturday. 在一場激怒了盟友並讓投資者感到不安的貿易戰升級中，特朗普在週六發布在其Truth Social平臺上的分别致歐盟委員會主席烏爾蘇拉·馮德萊恩和墨西哥總統克勞迪婭·謝恩鮑姆的信中宣布了最新的關稅。 Both partners swiftly slammed the new duties, with the EU warning they could disrupt supply chains while Mexico branded them an...