You are an expert at summarizing long articles. Proceed to summarize the following text: 
negotiations between china and the european union as part of china 's wider bid for readmission into the general agreement on tariffs and trade -lrb- gatt -rrb- are snagging on china 's lukewarm approach to opening up its vast domestic market , an eu diplomat said thursday .
gatt talks on readmitting china still stalled