I had to run away for fear (that) he might one day kill me.

我只好逃走，生怕他有一天把我杀了。

《牛津词典》

If he threatened to run away she retorted by a threat to kill him. And she said it as if she meant it.

假如他威胁说要逃走，她便针锋相对地威胁要杀了他，而且她全是当真说的。

youdao

One, the "swollen thorn acacia, " learned to encourage a species of ant to monopolize it as a food source and kill or run off all other predators.

其中一种“巨刺金合欢（即牛角相思树）”学会了如何诱使一种蚂蚁为独占自己而杀死或驱赶其他的掠食者。

youdao

Information that is going to be recorded so each game disc will require permission to run, and effectively allow you to kill the second hand games market?

FORBES: Sony's Latest Patent Could Wipe Out The Second Hand Games Market

Again players are forced to kill and run as they try to leave, but it feels entirely less engaging or harrowing.

FORBES: Black Ops 2 Shows How Not To Tell a Story Through Gameplay

First Tagicakibau danced around two defenders for his first try just minutes after coming off the bench and then Stowers slammed the ball into the base of the post to score his as Irish appeared to kill off the contest and threatened to run riot.

BBC: London Irish 40-24 Leeds