observer

A casual observer might think the building is abandoned, but it is actually a thriving business.

一个偶然的观察者可能会认为这栋建筑已被遗弃，但实际上它是一家生意兴隆的企业。

As an impartial observer, she noted both the strengths and weaknesses of the argument.

作为公正的观察者，她指出了论点的优点和缺点。

The anthropologist worked as a participant observer in the community.

这位人类学家在该社区作为参与观察者工作。

The election was monitored by independent observers from various countries.

选举由来自不同国家的独立观察员监督。

It is difficult to be an objective observer when you are emotionally involved.

当你情感上投入时，很难成为客观的观察者。

To an outside observer, the negotiations seemed endless.

在外部观察者看来，谈判似乎永无止境。

He remained a silent observer during the heated debate.

在那场激烈的辩论中，他始终是一个沉默的观察者。

As a keen observer of human behavior, she noticed the subtle changes in his expression.

作为人类行为的敏锐观察者，她注意到了他表情的微妙变化。

To a casual observer, the garden might seem ordinary, but it actually has many rare plants.

对于随意的观察者来说，这个花园可能看起来很普通，但实际上它有许多稀有植物。

As an observer, he realized he was also part of the system.

作为一个观察者，他意识到自己也是系统的一部分。

She learned to be an observer of her emotions.

她学会了观察自己的情绪。