Chest pains can be a warning signal of heart problems.

胸部疼痛可能是心脏病的报警信号。

《牛津词典》

Kurdish leaders saw the visit as an important signal of support.

库尔德领导人把这次访问看作是表示支持的重要信号。

《柯林斯英汉双解大词典》

The recall of Ambassador Alan Green is a public signal of America's concern.

艾伦·格林大使的召回是美国关注此事的公开信号。

《柯林斯英汉双解大词典》

Families of those suspected to have been killed in the mid 1980s by agents of the right-wing military regime of Oscar Mejia Victores, say just being able to search for their loved ones is a signal of progress in this country.

VOA: standard.2009.12.18

When you're in a group doing something terribly aggressive and you are not--you don't feel like you're at risk you might laugh and laughter is a signal to other members of your group as a signal of solidarity and what you're doing together.

当你在群体在做具有强烈攻击性的行为时,你不会觉得自己有危险,你会笑,你笑是向其他群体成员传达一个信号,你们团结一致，共同进退。

耶鲁公开课 - 心理学导论课程节选

The two accounts are extremely different but they both Signal the unique position and dignity of the human being.

这两种描述是截然不同的，但是它们都,表明了人类特有的地位和尊严。

耶鲁公开课 - 旧约导论课程节选

A-levels as a solid signal of achievement, but many now say they distrust them.

ECONOMIST: Exams

"It is a so-called 'smoking gun' signal of dark matter annihilation, " Prof Bergstrom told the BBC.

BBC: Fermi telescope may change to dark matter hunting

This is a signal of Ethiopia moving from an aid dependent economy to a can-do economy.

CNN: Ethiopia powers on with controversial dam project