billzhao 发表于 2015-8-26 22:50 7 l# U# E: S/ k `* ? A& pwhat subjects does your child need to improve? I taught math 30, math 20, calculus, physics 30, phys ...
" R1 M, [) ]' k% U) K& d你也教calculus,我家老大在学这个。你现在在爱城吗?有问题可以问吗?
billzhao 发表于 2015-8-26 22:50; m$ |# }, ?4 l4 E
what subjects does your child need to improve? I taught math 30, math 20, calculus, physics 30, phys ...