Many Chinese mothers are afraid that their children will fall behind their classmates, so these mothers are becoming 'tiger mothers'.
许多中国妈妈担心自己的孩子会落后于同班同学，所以这些妈妈就变成了“虎妈”。
All the traditional reasons put forward to interpret the pay gap—that women fall behind when they leave the workforce to raise kids, for example, or that they don't seek as many management roles—failed to justify this one.
