Usages of jìnlái
他 又 来 我 家 了， 我 让 他 先 进来。tā yòu lái wǒ jiā le, wǒ ràng tā xiān jìnlái.
He came to my place again; I asked him to come in first.
请 你 进来 吧。qǐng nǐ jìnlái ba.
Please come in.
Elon.io is an online learning platform
We have an entire course teaching Chinese grammar and vocabulary.