If you think your guests will receive a joke well, you can use one to tell them it’s time to leave. Then, laugh lightly to show them you’re kidding around. Usually, people will get the message and head home, rather than waiting for you to ask them again. For example, say, “You don’t have to go home, but you can’t stay here!” Alternatively, say, “Well, I’m heading to bed. Turn the lights out and lock the door when you leave!” Offering your guests a final drink, leftovers from the meal, or a treat for the way home lets them know the evening has come to an end. It also makes them feel as though they’re getting a gift, which takes the sting out of being indirectly asked to leave. Say to your guests, “Can I get you anything else?” or “Would you like a bottle of water for the ride home?” If you’re hosting a party or other event and are ready for your guests to head home, you can let them know that it’s time to go. Say “Sorry, everyone, but the party’s over! I had a great time and hope to see you all again soon.” This is direct, but polite, and should get your guests moving along. If you’re living with a roommate or significant other and own or lease the property in your name, you can ask them to move out. Make time to have a conversation when just the two of you are together. Be calm and considerate of their feelings.  You could say, “Though we had some good times living here together, it’s no longer working out. I’m sorry, but I need to ask you to move out.” If the person is on your lease and refuses to move out, you may need to get the police involved. It can be a difficult situation if a friend or family member is staying with you and you’re ready for them to leave. Give them specific reasons why they’ve overstayed their welcome.  You could say, “We can’t afford for you to live here any longer,” if they are a drain on your finances and haven’t offered to contribute to utility or grocery bills. If someone has taken over a room in your home, say “We really need Sasha to have her own room back,” or “Dave needs to...

TL;DR in Chinese:
就当时的情况开玩笑。 问他们是否还需要什么。 向客人们宣布派对结束了。 告诉室友你需要自己的空间。 向客人们解释为什么你不再欢迎他们呆在你家。 帮他找到新的住处。