President Xi gave a speech at an AI conference . He said AI should not belong to one country . He wants global teamwork to manage these tools . Twenty - nine nations agreed to form a new group . The new group will open an office in Shanghai . They want to keep technology safe for all people . He said humans must control these smart machines . Big nations should not stop others from building technology . China will train five thousand people from developing nations . Many tech companies showed off their new products .

Phrases:

all people . 所有人 . artificial intelligence . 人工智能 . belong to . 屬於 . brand new . 全新的 . called for . 呼籲 . developing countries . 發展中國家 . developing nations . 發展中國家 . focus on . 聚焦於 . make sure . 確保 . more than . 超過 . national security . 國家安全 . natural disasters . 自然災害 . promised to . 承諾 . run by . 經營 . set up . 設立 . should never . 永遠不應該 . should not . 不應該 . show off . 炫耀 . showed off . 展示 . smart phones . 智慧型手機 . stay in . 處於 . their own . 他們自己的 . warned against . 警告不要 .