a cup of water中的介词of什么意思,为什么要加介词?

a cup of water中的介词of什么意思,为什么要加介词? Pass ______(I) a cup of water. I need a cup of water .(对a cup of water 提问) I drink a cup of water .a cup of 是什么句子成分 please give me a cup of water 同义句 putting a cup of water near the computer什么意思 究竟是“a cup of water对还是”a glass of water对 究竟是“a cup of water对还是”a glass of water对拜托了各位 究竟是“a cup of water对还是”a glass of water对 he only asks ()a cup of tea 用什么介词 He passed a cup of tea__her.填介词 over a cup of a cup of a cup of coffee with a cup of pure water,face a lifetime of complex什么意思 英语填介词：hand a glass of water() him There is a lot of water in the cup可以说成The cup have a lot of water吗?如果不可以,请告诉我为什么吖.. Basketball is my cup of tea.中的 my cup of