observer
n. 观察者，目击者；观察家，评论员；（会议等的）观察员
复数 observers
例句
The talks took place in the presence of a diplomatic observer.
会谈是在一位外交观察家在场的情况下进行的。
《柯林斯英汉双解大词典》
The current sole superpower is far from being a disinterested observer.
当前惟一的超级大国远非一个公正的观察者。
The president suggested that a UN observer should attend the conference.
大会主席建议应该有一名联合国观察员参加该会议。
