他思想封闭，拒绝考虑其他观点。

He has a ___closed mind and refuses to consider alternative perspectives.

带着封闭的态度去旅行，会使你无法真正欣赏不同的文化。

Travelling with a ___closed attitude prevents you from truly appreciating different cultures.

经理对创新的封闭态度正在阻碍公司的发展。

The manager's ___closed approach to innovation is hindering the company's progress.