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Example
他在求職時接連碰壁，幾乎想放棄。
他在求职时接连碰壁，几乎想放弃。
He faced repeated setbacks while job hunting and almost wanted to give up.
Usage Notes
Literally it evokes hitting a wall, but normally it is an idiom for being blocked or repeatedly failing to get what one wants. It is often used about applications, negotiations, or other efforts.
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