for aOur editors are putting together more complete content — check back in about 20 minutesfor a介系詞 · 1連接詞 · 1for a — preposition介系詞1. used to indicate purpose or destination1.介系詞釋義used to indicate purpose or destination例句I bought this gift for you.for a — conjunction連接詞1 解釋1. because; since1.連接詞釋義because; since例句He can't see you, for he is very busy.