Nctm
abbr. National Council of Teachers of Mathematics <美> 全国数学教师理事会
🗣️ 情景例句
Take it easy. Don't work too hard.
悠着点。不要操劳过度。
He can't decide what to do.
他不能决定做什么。
One, for instance, consisted of rods of various lengths and thicknesses which would stand up on end like ninepins.
例如，有一种装置是由一些长短、粗细不同的木棒组成；就像九柱戏的木棒一样竖立着，