Thank you. Yes, thank you, Ron. Our margin actually decided by both the top line as well as the cost to control, our cost to control on the top line on the revenue side. Of course, we are in the travel industry so our performance will be pretty much decided by the industry growth. However, as always, we will do our best to continuously outpace the industry growth for example, in the third quarter, this year, we outpace the 10% to 20% at least for different segments compared with the industry growth in the travel industry. On the cost side, we will continuously to weather the COVID to weather the storm, we have to have a very disciplined cost policies cost structures to weather the storm. Firstly, we have very strong cash position. At the end of Q3, we have about U.S. $10.5 billion in the cash balance, which probably is the best among one of the best in the travel industry. Then secondly, on the cost side, our total adjusted costs and operating expenses actually decreased by more than 35% in Q3 compared with before COVID level, thanks to our very largely flexible cost expenses structure, and as well as efficient operating management. During the past few quarters, we streamlined our operations across different business lines, in addition to certain adjustments related to the COVID. And in addition, our improvements on the content cross-selling and technology have further lifted our marketing efficiencies. In terms of the cost trend, going forward we will expect a very modest increase in the personnel expenses only in our international markets. And for the domestic markets, we expect our total headcount will be pretty much stable, especially for our core businesses. But we need to add some investment just to capture the pent-up demand that has already been seen in the international market, especially in the Europe market. On the sales, marketing expenses, we will continuously to adapt -- adopt and our ROI driven strategy. And we will have very disciplined policies in terms of sales and marketing spending, both for the domestic China market as well as for the international market.