zài / shù / xué / kè / shàng / wǒ / men / xué / xí / le / rú / hé / jì / suàn / yí / gè / shù / de / chéng / fāng在数学课上,我们学习了如何计算一个数的乘方。In math class, we learned how to calculate the power of a number.