自生自灭
zì​shēng​zì​miè

run its course

2 sentences

  1. 他被放逐到一个荒无人烟的小岛上自生自灭。

    tā bèi fàng​zhú dào yī gè huāng​wú​rén​yān de xiǎo dǎo shàng zì​shēng​zì​miè.

    He was banished to a deserted island to fend for himself.

    Source: Dong Chinese Dictionary

  2. 如果没人照看这些植物，它们就只能自生自灭。

    rú​guǒ méi rén zhào​kàn zhè​xiē zhí​wù, tā​men jiù zhǐ néng zì​shēng​zì​miè.

    If no one looks after these plants, they will just have to sink or swim on their own.

    Source: Dong Chinese Dictionary