Meaning of bù rán:
bù rán
不然
Conjunction
not so; no; or else; if not; How about ...?
Nǐ yīnggāi zǎodiǎn qǐchuáng, bùrán huì chídào.
你应该早点起床，不然会迟到。
You should get up early, otherwise you will be late.
Zǎodiǎn chūfā, bùrán nǐ kěnéng huì cuòguò huǒchē.
早点出发，不然你可能会错过火车。
Leave early, otherwise you might miss the train.
Kuài diǎn zǒu, bùrán wǒmen huì chídào.
快点走，不然我们会迟到。
Hurry up, or else we will be late.
Wǒmen děi kuài diǎn, bùrán jiù yào chídào le.
我们得快点，不然就要迟到了。
We need to hurry up, if not we'll be late.
Wǒmen qù kàn diànyǐng ba, bùrán nǐ yǒu shénme qítā jiànyì?
我们去看电影吧，不然你有什么其他建议？
Let's go watch a movie, how about you? Do you have any other suggestions?
Adverb
otherwise
Kuài diǎn zǒu, bùrán wǒmen huì chídào.
快点走，不然我们会迟到。
Hurry up, otherwise we will be late.
