He mingled with [in] the crowd, and was lost to sight.

他混进人群里就不见了。

《新英汉大辞典》

We like to sight stars with the telescope at night.

我们喜欢在夜晚用望远镜观测星星。

youdao

It's not worth it traveling to other countries if you're just going to sight see. Actually, "live" inside another country.

出国旅游，如果只是去观光是值不回票价的，而真正应该做的是深入另一个国家去“生活”。

youdao

His boat crossed the Antarctic Circle in three places, but he still failed to sight land.

VOA: special.2009.06.03

It would go out of his sight, and then it would pass again going back down to the table.

会飘落到上面，时隐时现的，“

耶鲁公开课 - 1945年后的美国小说课程节选

The final sight I like to show you is the Star Festival sight. Every town has a festival of some sort and my hometown has the Star Festival.

最后一个我要展示给大家的片段是七夕,每个小镇都有些节日,我的家乡有这个“七夕节“

麻省理工公开课 - 媒体、教育、市场课程节选

"You never know when you are going to sight a fish you haven't seen before, " said Peter Leahy, an amatuer diver who has been participating in the fish count for the last seven years.

CNN: Counting fish adds up for marine protection

And I talked about the, you know, the experience of sort of going out in the woods and at first being afraid to leave sight of the buildings and people and later on it became being afraid to come back to the sight of buildings and people.

NPR: Rocky Mountain Activist Carole King

It can recognize up to three people by voice and one by sight, and reacts with visible pleasure to the sight or sound of its owner.

FORBES: Aibo