Now, they rank number one across the board, in reading, math and science, and one of the keys to Shanghai's incredible success is the way they help teachers keep improving.
他们在阅读，数学以及科学等所有方面 排名都是第一， 而上海能有这种令人惊讶的成功的关键之一就在于 他们帮助教师不断自我发展的方式。