校园里新铺了几条鹅卵石小路，方便学生们穿行。

The campus has newly paved cobblestone ___pathways for students to walk through.

职业生涯规划帮助你找到通向成功的不同路径。

Career planning helps you discover various ___pathways to success.

科学家发现了这种药物影响细胞信号传导的新通路。

Scientists discovered new ___pathways through which this drug affects cellular signaling.