after 6 yr study here, her english is so good that her new teacher think she is local grownup. Her chinese level is keeping about same level as 6 grade, good enough for daily life. However if a 5 yrs only learn English, when she really is good at English, she maybe never learn chinese well later, the English environment is so strong that make Learn-chinese like a mission-impossible. So conclusion: learn chinese as early and hard as possible if U want your kid command chinese languge. English is never a problem here.