1.We mustn`t neglect the animals that are still alive after bleeding for a week.
2.We mustn`t neglect the animals that are still alive though they have been bleeding for a week.
3.We mustn`t be caless with/about the animals that are still alive after bleeding for a week.
4.We mustn`t be caless with/about the animals that are still alive though they have been bleeding for a week
5.Don`t be careless with/about the animals that are still alive though they have been bleeding for a week
前两句是根据意思来翻译的,后两句是直译.大致意思就是这样,你可以根据需要改改