-trix
suf. [阴性名词词尾,相当于-or]表示女性...者：aviatrix, executrix; [数学]点,线,面：directrix [亦作-trice]
🧩 词语组成解析
abbr. 三重指数平滑移动平均线（Triple Exponentially Smoothed Moving Average）
🗣️ 情景例句
Yes. They reached us yesterday.
是的，昨天我们收到这批货物。
Did you go to the party yesterday?
你昨天去参加聚会了吗？
It's very thoughtful of you.
你想得真周到。