spring up   (TTS發音)

suddenly appear，arise，or develop湧現；發生；迅速長出；迸發

    New factories are springing up like mushrooms. 新工廠如雨後春筍般地湧現。

    Doubts sprang up in his mind. 他心中開始產生懷疑。

    A breeze suddenly sprang up. 突然吹起一陣微風。

    A new custom has sprung up. 一種新的風尚出現了。