Usages of dahulu
Biar saya memeriksa dokumen dahulu sebelum kita berangkat.
Let me check the documents first before we depart.
Dia makan siang dahulu, sedangkan saya sudah makan pagi.
He/She eats lunch first, whereas I have already eaten breakfast.
Elon.io is an online learning platform
We have an entire course teaching Indonesian grammar and vocabulary.