The duo suddenly erupted in laughter for no discernible reason.

两人突然毫无征兆地放声大笑起来。

金山词霸

Unannounced, she erupted in uncontrollable giggles.

毫无征兆地，她突然爆发出一阵咯咯的笑声。

金山词霸

Without any sign, he slumped down onto the chair.

他没有任何征兆地瘫倒在椅子上。

金山词霸

Without any sign, his legs suddenly failed, causing him to tumble down heavily.

他的双腿毫无征兆地瘫软，使他重重跌倒在地。

金山词霸

Industrial production exhibits emerging indications of rebound.

工业生产展现出初步的回升征兆。

金山词霸

A nagging pain signaled the beginning of the illness.

这种疾病最初的征兆是挥之不去的疼痛。

金山词霸

Abruptly halting his steps, the stranger drew in the ambient air without any sign.

毫无征兆地，这位陌生人突然停下脚步，吸入了周围的空气。

金山词霸

Vanishing without warning, Emily was last seen close to her home last Wednesday.

上周三，艾米丽在她家附近最后一次露面后便毫无征兆地消失了。

金山词霸

Unexpectedly, my soul was seized without a trace.

毫无征兆地，我的灵魂被攫住了，不留一丝痕迹。

金山词霸

Buds on the trees are a sign of spring.

树上的萌芽是春天来临的征兆.

《现代汉英综合大词典》

The symptoms manifested themselves ten days later.

十天后征兆显露出来了.

《简明英汉词典》

There are signs for us to read.

有征兆可寻.

《现代汉英综合大词典》

Cautious mothers and fathers consistently safeguard their children from the slightest suggestion of danger.

谨慎的爸爸妈妈时刻守护他们的孩子，远离最细微的危险征兆。

金山词霸

The city's problems are symptomatic of the crisis throughout the nation.

该市的问题具有全国性危机的征兆。

金山词霸

Or is It'some sign of weather that I do not know?

要不,这是什么我不懂得的天气征兆?

英汉文学 - 老人与海