Questions & Answers about harue chaegeul han gwon ilgeoyo.
What does 하루에 mean, and why is the particle 에 used after 하루?
하루에 literally means in one day or per day. The particle 에, when attached to time nouns, indicates the time when or the time span in which an action occurs. Here it expresses the rate: one book per day.
Why is 책을 marked with 을 instead of 를?
을 is the object-marking particle used after nouns ending in a consonant. Since 책 ends in the consonant ㄱ, we use 을 to mark it as the direct object. If the noun ended in a vowel, we would use 를 instead.
Why does the sentence use 한 권 instead of 한 개 or just 한?
권 is the native Korean counter for books and similar volumes. Different counters are used for different object types. 개 is a general counter but is less natural for books; 권 is the correct choice here. So 한 권 equals one book.
Why is there no subject like I or we in the sentence?
Korean often omits the subject when it is clear from context. In this sentence, the speaker is talking about their own habit, so I or we is understood and does not need to be stated explicitly.