Yes, thank you, Zoe, I think we can start in your order. First question is about the drivers and revenue growth. That's a good question. And I think I spoke about in my script about why we compete to grow at a pretty fast pace, even though our revenue base has gone down over $1 billion last year. And I think fundamental it still our model driving the growth. It's our S2B2C model, if you look at the progress we made in Q1 and obviously we announced the two new fulfillment centers in full operation. And also we're expanding upgrading some of the existing fulfillment centers. And we increased the pharmaceutical partnership to 360 plus, and we also collaborated with a number of globally renowned pharmaceutical companies on their new drugs, like Eli Lilly, like BeiGene, like , et cetera. We're also working with some of the CSO companies that are also referenced that we have over 900 marketplace vendors on our platform. This is all our S, so that's our supply chain platform. And obviously, how do we really break up the S2B2C and then I explained that was further broken down into S2B2C to B2C, right? So in the S2B side, that's the pharmacy side of the business. I referenced a number by March 31, we actually covered more than 340,000 pharmacies, right, that is more than 50% of the overall markets and on the B2C side, the number of doctors we have been working with has increased to more than 15,000 by the end of the quarter right. So really, if you look into the growth of the business, this is the fundamental driver. And we're pretty confident that we're going to continue to deliver pretty robust growth, even though our base has become a much, much bigger base now. And the second part of your question is about the focus our customer groups, really on the pharmacy side yes indeed, with the majority of the pharmacies now. But what we believe the value we could offer to the small and medium chains, and the single source from the dimension of graphical coverage instead of focusing on Tier 1 cities. I think our biggest opportunity is really in the Tier 3 to Tier 6 cities. The lower Tier cities, they actually - those pharmacies there need our services more than those Tier 1 cities pharmacies. So I'll stop at that and maybe Gang should be talking about the partnerships on the question two.