assert

她必须学会坚持己见。

She has to learn to ___assert ___herself.

这个国家为摆脱殖民统治、维护自身独立而战。

The nation fought to ___assert its independence from colonial rule.

新任经理不得不向不服管束的团队展示他的权威。

The new manager had to ___assert ___his authority over the unruly team.