Nctm
abbr. National Council of Teachers of Mathematics <美> 全国数学教师理事会
🗣️ 情景例句
She always plays with love.
她总是玩弄爱情。
Pile the hay in the corner.
把干草堆到边上。
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。