Usages of chưa ... bao giờ
Nếu bạn chưa ăn ở đó bao giờ, bạn nên thử mì trước.
If you have never eaten there before, you should try the noodles first.
Nếu bạn chưa ăn món mì ở quán đó bao giờ, bạn nên thử.
If you have never eaten the noodle dish at that café before, you should try it.
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