本期內容：

The popular short video app TikTok, operated by the world's most valuable start-up ByteDance, is under investigation in Britain over its handling of children's data privacy, marking the latest regulatory hurdle for the company amid its rapid overseas expansion. Earlier this week, the UK regulator is investigating the app's open messaging system, which allows adults to contact children, and how private information from minors is collected and stored.

start-up: 創業公司
technology start-up: 科創公司
Internet start-up: 互聯網創業公司
start up: 啟動；開動
Start up the engines. 啟動引擎。
investigation: n. 調查；調查研究
under investigation over sth. 就某事接受調查
mark: vt. 做標記；標志著 n. 標志
The handshake between the two leaders marks the new era of cooperation.
兩國領導人的握手標志著一個合作的新時代。
regulatory: adj. 管理的；控制的
regulate: v. 管控，調節
regulation: n. 行政法規
hurdle: n. 跨欄；障礙
overcome/get over a hurdle: 克服障礙
minor: n.（法律上指）未成年人 adj. 微小的；不重要的 vi. （大學里指）輔修（major in: 主修 minor in: 輔修）
minor injuries: 小傷
a minor role: 不起眼的角色
She majored in English and minored in economics in college.
她大學主修英語，輔修經濟學。

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