戛然而止

“戛然而止”可以用以下英语表达，根据具体语境选择最贴切的表达方式：

Came to an abrupt halt

适用于动作、进程或事件突然停止。
例句：The music came to an abrupt halt.
Stopped dead in its tracks

比较形象化，表达突然、完全停住，常用于动作或情感。
例句：The conversation stopped dead in its tracks when he walked in.

Came to a screeching halt

带有更形象和戏剧性的感觉，常用于形容车子或计划突然中断。
例句：The project came to a screeching halt due to a lack of funding.

Was cut short

强调某事在进行中被中断，可能因为某种原因而提前结束。
例句：The celebration was cut short by unexpected news.
Abruptly ceased

更正式的表达，用于写作或正式场合。
例句：The discussion abruptly ceased as tension filled the room.
根据场景和语气选择适合的表达更能准确传达“戛然而止”的感觉。