英语语法分析

This should cure your hangover once and for all, leaving you with a calming sensation of insobriety and joylessness.

它能一劳永逸地治好你的宿醉，留下对酗酒的平静印象和百无聊赖之感。

None, and humans fell into great joylessness thereafter, with only artificial joy remaining in entertainment or humor.

没有。而此后人类就跌入到巨大的不欢乐中，只有人造欢乐在娱乐或幽默中保存。

We do experience joy; and yet there are also long periods of depression and joylessness that also occurs for our species.

我们确实体验了欢乐，但我们物种也有长时期的沮丧与不快乐。