Facing new restrictions and calls to be banned in the US and Europe, the popular app faces a fight for its future面对美国和欧洲的新限制和全面禁止呼吁，这款高人气的短视频应用面临一场艰巨的生存之战。
On the face of it, TikTok makes for an unlikely threat to national security.
从表面上看，TikTok不太可能对国家安全构成威胁。