Question

二十一岁以后可以喝酒。 After you are 21 years old, you can drink alcohol.

Accepted Answer

Èrshí yī suì yǐhòu kěyǐ hējiǔ. Subj. + 可以 + Verb + Obj. Use this structure to express permission to do things. Source : https://resources.allsetlearning.com/chinese/grammar/Expressing_permission_with_%22keyi%22

Hanzi	二十一岁以后可以喝酒。
Pinyin	Èrshí yī suì yǐhòu kěyǐ hējiǔ.
English	After you are 21 years old, you can drink alcohol.
Notes	_{Subj. + 可以 + Verb + Obj.} _{Use this structure to express permission to do things.} _{Source : https://resources.allsetlearning.com/chinese/grammar/Expressing_permission_with_%22keyi%22}

Permission 二十一岁以后可以喝酒 èrshí Yī Suì Yǐhòu Kěyǐ Hējiǔ