(as) stubborn as a donkey

• 其犟如驴；非常固执

(as) stubborn as a donkey的用法和样例：

例句

1. He was as obstinate as a mule on that point.
   他在那个问题上非常固执。
2. The resistances of the War Office were obstinate, and increased as the professional ladder was descended.
   陆军部的反对非常固执，而且，军阶愈低的人，反对愈强烈。