"Shout at" is an incorrect term. It is not polite or appropriate to use in a conversation. If you have a problem or conflict with someone, it is recommended that you communicate with them directly and respectfully.

shout at的中文翻译是“对...大声喊叫；责骂；训斥”。

shout at的动词原形是shout。at是它的宾语补足语，表示方向或者目标。变化后的短语意思没有太大变化，仍然表示“喊叫”。