They built a ten-foot high fence to secure the house against intruders.

【secure】他们建了一道十英尺高的栅栏，以保护房子不受入侵者的侵扰。

He does take a few jobs seriously, though, like defending the pride against intruders and joining in a hunt when his bulk is needed.

不过，他确实认真对待一些工作，比如保护狮群不受入侵者入侵，在需要他的身躯时加入狩猎。