billzhao 发表于 2015-8-26 22:50$ x3 |9 |; r0 |! g. n* ]) `! D
what subjects does your child need to improve? I taught math 30, math 20, calculus, physics 30, phys ...
billzhao 发表于 2015-8-26 22:50: ~6 D1 a$ T# Y: l7 W. g {6 T
what subjects does your child need to improve? I taught math 30, math 20, calculus, physics 30, phys ...
+ q$ U7 U# W }/ e1 b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?