⋯⋯，要不然/不然⋯⋯
คำอธิบาย
该结构用于提出假设性条件，前半句陈述事实或建议，后半句通过“要不然/不然”引出假设不满足该条件时可能产生的结果或替代方案。
This structure introduces a hypothetical condition. The first clause states a fact or suggestion, while the second clause uses '要不然/不然' to present a consequence or alternative if the condition is not met.
ตัวอย่าง
大家要认真对待考试，要不然会影响毕业的。
Everyone must take the exam seriously, otherwise it will affect graduation.
你不用太担心，不然我和你一起去。
You don't need to worry too much, otherwise I'll go with you.
外面下雨了，不然我们明天再去吧。
It's raining outside, otherwise let's go tomorrow instead.