If people or animals are alive, they are not dead.
She does not know if he is alive or dead.
她不知道他是活还是死。
If you say that someone seems alive, you mean that they seem to be very lively and to enjoy everything that they do.
She seemed more alive and looked forward to getting up in the morning.
她似乎更有活力,并且期待着一早就起来。
If an activity, organization, or situation is alive, it continues to exist or function.
The big factories are trying to stay alive by cutting costs.
大工厂试图通过减少开支以维持生存。
If a place is alive with something, there are a lot of people or things there and it seems busy or exciting.
The river was alive with birds.
这条河流周围满是各种鸟类。
come alive , bring alive
If people, places, or events come alive, they start to be lively again after a quiet period. If someone or something brings them alive, they cause them to come alive.
The doctor's voice had come alive and his small eyes shone.
医生的声音变得响亮起来,两只小眼睛也有了神采。
If a story or description comes alive, it becomes interesting, lively, or realistic. If someone or something brings it alive, they make it seem more interesting, lively, or realistic.
She made history come alive with tales from her own memories.
她通过讲述自己记忆中的往事使历史变得生动有趣起来。