求翻译：我忘了告诉你，我们制做这些先寄的项目要5-10天，而且我们这里是中国大陆，所以用快递寄出这些项目也需要6-12天，所以5天之内它们不可能到达是什么意思？

I forgot to tell you, making these the first to send us the items to be 5-10 days, and we are here in China, so these items are sent by courier takes 6-12 days, so within 5 days they can not reach

I forgot to tell you that we have to make these first-come-first-served basis by sending items are to be 5 - 10 days, and that of the Mainland, and that is why we are here by express sent these projects are also needs to be 6 - 12 days within 5 days, so they could not reach

I forgot to tell you, us make the project which these sent first to take for 5-10 day, moreover our here was mainland China, therefore with express mailed out these projects also to need for 6-12 day, therefore within 5 days they not impossible to arrive

I forgot to tell you, we make these items before sending to 5-10 days, and we here in the Chinese mainland, so by express mail these items also needs to be 6-12 days, so within 5 days they cannot reach

I forgot to tell you, making these the first to send us the items to be 5-10 days, and we are here in China, so these items are sent by courier takes 6-12 days, so within 5 days they can not reach