开kāikāito openUsages of kāi你nǐ 可以kěyǐ 开kāi 门mén 吗ma?nǐ kěyǐ kāi mén ma?Can you open the door?他tā 正在zhèngzài 开kāi 门mén。tā zhèngzài kāi mén.He is opening the door.Elon.io is an online learning platformWe have an entire course teaching Chinese grammar and vocabulary.Start learning Chinese now