你要是英语还凑合的话， 请看第三条：

As of September 20, 2020, for WeChat and as of November 12, 2020, for TikTok, the following transactions are prohibited:

1 Any provision of internet hosting services enabling the functioning or optimization of the mobile application in the U.S.;

这一条是美国的Internet Hosting Service不能再支持Wechat or Tiktok. Internet Hosting Service是指存放运行服务器的地方，Amazon, Google, Microsoft， Godaddy等都有此项业务。 

2 Any provision of content delivery network services enabling the functioning or optimization of the mobile application in the U.S.;

这一条是指内容缓存服务， 比如Akamai. 通过此服务终端用户无需直接无原厂商的服务器联系。 

3 Any provision directly contracted or arranged internet transit or peering services enabling the function or optimization of the mobile application within the U.S.;

这一条是指Internet Service Provider, 比如AT&T, Verizon等切断网络流量。 

4 Any utilization of the mobile application’s constituent code, functions, or services in the functioning of software or services developed and/or accessible within the U.S.

这一条是指不能再重复使用原代码了。 如果把wechat改为wecom, 也属于此条。