Usages of oleh
Semua pinggan kotor dicuci oleh adik saya malam ini.
All dirty plates are washed by my younger sibling tonight.
Kadangkala, fail itu dibawa oleh bos ke pejabat berlainan untuk mesyuarat penting.
Sometimes, that file is taken by the boss to a different office for an important meeting.
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We have an entire course teaching Malay grammar and vocabulary.