Usages of dua puluh
Harga biskut kecil itu hanya dua puluh sen, jadi anak saudara saya terus membelinya.
That small biscuit costs only twenty sen, so my niece/nephew bought it right away.
Saya bayar dua puluh ringgit di kaunter bayaran.
I pay twenty ringgit at the payment counter.
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We have an entire course teaching Malay grammar and vocabulary.