DICT.TW Dictionary Taiwan

 on occasion
 偶爾,有時,間或,必要時

 Oc·ca·sion n.
 1. A falling out, happening, or coming to pass; hence, that which falls out or happens; occurrence; incident; event.
    The unlooked-for incidents of family history, and its hidden excitements, and its arduous occasions.   --I. Taylor.
 2. A favorable opportunity; a convenient or timely chance; convenience.
    Sin, taking occasion by the commandment, deceived me.   --Rom. vii. 11.
 I'll take the occasion which he gives to bring
 Him to his death.   --Waller.
 3. An occurrence or condition of affairs which brings with it some unlooked-for event; that which incidentally brings to pass an event, without being its efficient cause or sufficient reason; accidental or incidental cause.
    Her beauty was the occasion of the war.   --Dryden.
 4. Need; exigency; requirement; necessity; as, I have no occasion for firearms.
    After we have served ourselves and our own occasions.   --Jer. Taylor.
    When my occasions took me into France.   --Burke.
 5. A reason or excuse; a motive; a persuasion.
 Whose manner was, all passengers to stay,
 And entertain with her occasions sly.   --Spenser.
 On occasion, (a) in case of need; in necessity; as convenience requires. “That we might have intelligence from him on occasion,”   -- (b) occasionally; from time to time; now and then.
 Syn: -- Need; incident; use. See Opportunity.

 on occasion
      adv : now and then or here and there; "he was arrogant and
            occasionally callous"; "open areas are only
            occasionally interrupted by clumps of trees"; "they
            visit New York on occasion"; "now and again she would
            take her favorite book from the shelf and read to us";
            "as we drove along, the beautiful scenery now and then
            attracted his attention" [syn: occasionally, once in
            a while, now and then, now and again, at times,
            from time to time]