Some countries observe November eleventh as Armistice Day or Remembrance Day.

VOA: special.2009.11.14

Other times it behaves as a wave, and that is the way it helps us to think and rationalize what we observe.

另一些时候它更像波，而这是能帮助我们思考,和理解我们所观察到的东西的一种方法。

麻省理工公开课 - 固态化学导论课程节选

If Israel doesn't observe the prohibitions that distinguish the Sabbath as sacred, it's automatically desecrated.

若以色列没有服从到那些,使安息日变得神圣的禁令，它就会自动被亵渎。

耶鲁公开课 - 旧约导论课程节选

I do therefore invite my fellow-citizens in every part of the United States, and also those who are at sea and those who are sojourning in foreign lands, to set apart and observe the last Thursday of November next as a day of thanksgiving and praise to our beneficent Father who dwelleth in the heavens.

VOA: special.2009.11.23

I feel certain sensations in my body, but it doesn't seem as though I observe a soul.

我能感应到肉体里某些特定的感觉,但我并不认为那样我就能观察到灵魂

耶鲁公开课 - 死亡课程节选

Security was already tight as Iranians observe an annual period of mourning.

VOA: standard.2009.12.22

Think of Star festival as a textbook that is come to life and environment where students can observe and draw their own conclusions, there is a path way to a new type of learning that is independent yet guided.

将Star，festival看作是一本教科书,走进我们的生活和环境,在那，学生们能观察,并得出自己的结论，有一条路通往学习的新形式,它独立自主，但也有所指导。

麻省理工公开课 - 媒体、教育、市场课程节选

But they did not take part in the recount because the court refused to allow each of them to send a political representative as well as a bailiff to observe the process.

VOA: standard.2009.10.04

As Somalis prepare to observe the start of the Muslim holy month of Ramadan, al-Shabab and Hisbul Islam rebels appeared to have made good on their vow to mark the start of Ramadan with intensified attacks against the government and the African Union mission in Mogadishu known as AMISOM.

VOA: standard.2009.08.21