One thing to note is that, when specifying the external number using the E.164 format, you must encode the leading + as %2B.

需要注意的一点是，在使用 E.164 格式指定外部号码时，必须将前面的 + 编码为 %2B。

youdao

Number 2 is internal and external communication.

第二是内部和外部的交流。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

So, number 2 is that internal and external communication.

所以第二就是,内部和外部的交流。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

She added that the office had responded well to difficult circumstances however it faced a number of external challenges including tighter budgets.

BBC: Audit committee

So, although the new car in the advertisement may look like the old one, the external form conceals a number of significant changes to the engine.

ECONOMIST: The science of selling

Halting the fighting will involve some diplomatic spade-work drawing in a number of external actors - Egypt certainly, probably the United States and maybe even Turkey as well.

BBC: Are Israel's war aims achievable?