billzhao 发表于 2015-8-26 22:50 J0 e _1 i: q0 y" ?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 u |+ p4 `6 p, I: jwhat subjects does your child need to improve? I taught math 30, math 20, calculus, physics 30, phys ...
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你也教calculus,我家老大在学这个。你现在在爱城吗?有学习上的问题可以问吗?