The salary
As "burnable gomi" mentioned, the top part of the U$D salary is based on a 100% wide-body contract living in China and making use of all the benefits like insurance, schooling, bonuses, etc...
The lower number is always the guaranteed salary, meaning if you do not choose to take the insurance, schooling benefits and if you really put lots of efforts in not getting all your bonuses, which hasn't happened to anyone in Hainan Airlines over the last few years to my knowledge.
So, on a wide-body you definitely take cash home U$D 251,000 net per year.
If you are entitled to any benefits, as you insure yourself and your family, take your kids to an international school and get the lost of license program, then you can go up to a package of U$D 348,000 net per year.
Taxes and free tickets for yourself and the family members are not included in that figure and should be calculated ON TOP of that!
FCOM-5