停火协定被看作是与恐怖主义斗争的重要里程碑。

The ceasefire was seen as a major landmark in the fight against terrorism.

《牛津词典》

路易斯和布鲁克斯认为，当儿童不借助于观察偶然行为，也能通过视觉认出自己时，他们就达到了发育的一个重要里程碑。

Lewis and Brooks argued that an important developmental milestone is reached when children become able to recognize themselves visually without the support of seeing contingent movement.

youdao

阐明重要里程碑。

Clarify important milestones.

youdao

there are some milestones in insurance that I want to mention.

还有一件重要的Another important–- 我想讲讲保险业发展过程中的里程碑式事件

耶鲁公开课 - 金融市场课程节选