Meaning:

独木桥 (dúmùqiáo) single-log bridge; difficult path

Usage:

“独木桥”指由一根木头搭成的桥，意为艰难、危险、有竞争力的途径。

“独木桥” means a bridge made of one log, which represents a difficult, dangerous, and competitive path.

Examples:

1. 那年七月，我从通往大学的独木桥上栽落下来。

    Nànián qīyuè, wǒ cóng tōngwǎng dàxué de dúmùqiáo shàng zāiluò xiàlái.

    That July, I fell off the single-log bridge (college entrance exam) that led to the college.

2. 中国的高考可以说是千军万马过独木桥。

    Zhōngguó de gāokǎo kěyǐ shuōshì qiānjūnwànmǎ guò dúmùqiáo.

    China’s gaokao （college entrance exam） can be said to be an army of thousands of men trying to cross a single-log bridge.