int.晚安(晚间道别时或睡前说，非正式用法常只说Night)

Goodnight, sweet dreams." - "晚安，好梦。"
This is a common way to wish someone good sleep and pleasant dreams before they go to bed.
She kissed her child on the forehead and said goodnight." - "她在孩子的额头上亲了一下，然后说晚安。"
This shows a tender moment between a parent and child at bedtime.
Goodnight, everyone. See you all tomorrow." - "各位晚安，明天见。"
This could be said by someone leaving a gathering or at the end of a live broadcast.
I'm going to turn in early tonight, goodnight." - "我今晚要早点睡，晚安。"
This indicates that the speaker is going to bed earlier than usual.
He whispered 'goodnight' as he turned off the light." - "他关灯时轻声说了声‘晚安’。"
This describes a quiet, possibly romantic scene where someone is saying goodnight before sleeping.
The hotel staff wished us goodnight as we entered our room." - "我们进入房间时，酒店工作人员向我们道晚安。"
This is a polite gesture often seen in hotels or guesthouses.
They exchanged goodnights and went to their respective rooms." - "他们互相道了晚安，然后各自回房。"
This could happen after a dinner party or any social gathering that ends late at night.
Goodnight, world. I'll see you in the morning." - "晚安，世界。我明早再见到你。"
This is a poetic way to express the idea of going to sleep and expecting to wake up to a new day.
She texted her friend 'goodnight' before turning off her phone." - "她关机前给朋友发了条‘晚安’的短信。"
This is a modern way of saying goodnight, using technology to communicate.
The stars twinkled above as she whispered 'goodnight' to the sky." - "她对着天空轻声说了声‘晚安’，星星在上面闪烁。"
This paints a picture of someone appreciating the beauty of the night sky before going to bed.