同住

yí mǔ lái de shí hou nǐ děi hé mèi mei tóng zhù yī jiān fáng

姨母来的时候你得和妹妹同住一间房。

You will have to double up with your sister while your aunt is here.

suì yǐ xià ér tóng yǔ jiā rén tóng zhù bù lìng shōu fáng fèi

12岁以下儿童与家人同住，不另收房费。

No charge for children under the age 12 sharing room with parents.