1. 突然冲入：irrotional 不旋转的 | irrupt 突然冲入 | irruption 侵入

1. increase rapidly and in an uncontrolled manner

    e.g. The population of India is exploding
           The island''s rodent population irrupted

    Synonym: explode

2. erupt or intensify suddenly

    e.g. Unrest erupted in the country
           Tempers flared at the meeting
           The crowd irrupted into a burst of patriotism

    Synonym: eruptflare upflarebreak openburst out

3. enter uninvited

    e.g. They intruded on our dinner party
           She irrupted into our sitting room

    Synonym: intrude