要不

otherwise

1. 别摇晃瓶子，要不沉淀就都搅起来了。
   Don't shake the bottle or you will disturb the lees.
2. 我们得跑著去，要不就太晚了。
   We must run, otherwise we'll be too late.
3. 把瓶盖儿盖好，要不汁液就洒出来了。
   Put the cap back on the bottle, otherwise the juice will spill.
4. 你可得安静点儿了，要不然我没法计算了。
   Do keep quiet or you'll throw me out in my calculations.
5. 快一点，要不然就赶不上第一班火车了。
   Make haste, or you'll miss the first train.
6. 要不要，随便你。
   Take it or leave it.
7. 要不要由你。
   Take it or leave it.
8. 你最好把我的书给我，否则我的测验将要不及格了。
   You'd better give me my book, otherwise I'll fail my test.

不的英语翻译：