前兆

1.The black clouds gave warning of an approaching storm.

乌云雨将要来临的前兆。

2.Heavy clouds are the forerunners of a storm.

阴云密布雨的前兆。

3.The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰已发后退现象,西双版纳也已出现一些变化的前兆。