Garch
abbr. 廣義自回歸條件異方差（Generalized Autoregressive Conditional Heteroskedasticity）
??? 情景例句
Staff only.
員工專用。
He likes playing the eletronic organ.
他喜歡彈電子琴。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也許已經了解到中國在對外貿易中采取了靈活的政策。