Meaning of guǒ rán:
果然
really; sure enough; as expected; if indeed
Tiān qì yù bào shuō jīn tiān huì xià yǔ, wài miàn guǒ rán xià qǐ le yǔ.
天气预报说今天会下雨,外面果然下起了雨。
The weather forecast said it would rain today, and really, it started to rain outside.
Tā shuō tiān huì xià yǔ, guǒrán xià le.
他说天会下雨,果然下了。
He said it would rain, and sure enough, it did.
Tā cānjiāle kǎoshì, guǒrán qǔdéle hǎo chéngjì.
他参加了考试,果然取得了好成绩。
He took the exam, and as expected, achieved good results.
Tiānqì yùbào shuō jīntiān huì xià yǔ, guǒrán xiànzài zhèngzài xià yǔ.
天气预报说今天会下雨,果然现在正在下雨。
The weather forecast said it would rain today, and indeed it's raining now.