I'm assuming he's not on the kill list.

我想他没在清除名单吧。

Why did he focus so intently on the killed virus, when others, like his legendary competitor Albert Sabin, were dead set on trying to develop a live virus?

为什么他如此专注于灭活病毒，而其他人，比如他的传奇对手阿尔伯特·萨宾，却一心一意地想要开发减毒疫苗？

We've got to wait for the lion to make the kill and it's got to be at a time when we can still come out early morning and still have enough light to film them on the kill.

我们得坐等狮子来猎食，那个时机必须刚好，既要能保证安全，华伦·塞缪尔摄影师又要有足够的自然光把片子拍好。