Esi
abbr. 紧急停止指示器（Emergency Stop Indicator）；外部指定索引（Externally Specified Index）
🗣️ 情景例句
but when I received the letter
但是当我收到那封信
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
Oh, dear! What's wrong?
噢，天哪！怎么啦？