run up against   (TTS發音)

1. meet by chance ；encounter碰到；偶遇

    I thought we would be successful，but we ran up against a lack of money. 我本以為我們會成功，但因資金短缺而受阻。

    Could you help me？I've run up against a few problems. 你能幫我 一下嗎？我碰上了幾個問題。

2. collide with與…相撞

    In the dark he ran up against a big tree. 黑暗中，他撞到一棵大樹上去了。