postcrossing 为什么刚开始只能寄5封？怎样才能增加上限？

postcrossing 为什么刚开始只能寄5封？怎样才能增加上限？
postcrossing谁比较了解 多介绍点

For example:
If you have sent between 0 and 19 postcards, you can send 5 postcards.
If you have sent between 20 and 39 postcards, you can send 6 postcards.
If you have sent between 40 and 59 postcards, you can send 7 postcards.
If you have sent between 60 and 79 postcards, you can send 8 postcards.
If you have sent between 80 and 99 postcards, you can send 9 postcards.
If you have sent between 100 and 149 postcards, you can send 10 postcards.
If you have sent between 150 and 199 postcards, you can send 11 postcards.
If you have sent between 200 and 249 postcards, you can send 12 postcards.
... and so on, in increments of 1 postcard for each 50 you send.

是这样的，postcrossing是明信片交流活动，如果对方没有特别要求一定用信封，是不必把明信片放到信封里寄出的。只要直接在明信片上写上内容和对方地址，把邮票贴在明信片上就可以投到信筒里寄出了。 填写地址就按照她的地址照抄一遍即可，可以写在明信片右下角，如果明信片有地址栏也可以直接写那里。只是最后的国名usa要附加上中文“美国”，不然邮局的工作人员会看不懂。 邮资是航空4.5元，水陆路3元，航空+水陆路4元（这个基本不用）。建议如果你是在上海、北京、广州等大型城市的话，寄3元比较实惠，所用的时间和4.5的航空差不多。如果寄4.5元的航空，最好在明信片上用红笔标注“航空paravion”。如果寄3元的水陆路，就不用标注了，要标注也可以写“水陆路”。 还有，别忘了找个地方写上明信片id~ 基本就这些了，希望能帮得上你~如果还有问题，欢迎给我发消息。 happypostcrossing!