这些迹象说明事情可能会变得更好。

Zhèxiē jìxiàng shuōmíng shìqíng kěnéng huì biàn de gèng hǎo.

These signs indicate that things may get better.

突然的气温下降是暴风雪来临的迹象。

Tūrán de qìwēn xiàjiàng shì bàofēngxuě láilín de jìxiàng.

A sudden drop in temperature is a sign of an impending snowstorm.

警察正在调查案件，寻找线索和迹象。

Jǐngchá zhèngzài diàochá ànjiàn, xúnzhǎo xiànsuǒ hé jìxiàng.

The police are investigating the case, searching for clues and signs.