"请给我们五个杯子。"

Translation: Please give us five glasses.

[John372107]

Couldn't "杯子" also be translated as "cups"?

[TheCheebo]

Agreed. Google translate says cup is "bei zi"

[AlexFletch]

Yes, cups is accepted as an answer. To explicitly refer to glasses you could say 玻璃杯 (bōlibēi)

[BasiaNowak3]

Is the implication here that the glasses/cups are empty?

[LeonBland]

I know zi means kids but what does it mean in beizi