我得买水英语怎么说

在英文中，如果你要买水，你可以说"I need to buy water." 这句话的来源是英文动词"buy"，它的意思是"购买"，加上它的宾语"water"，即"水"，就可以得到这句话的意思。

其他一些有关买水的英文例句及其中文翻译如下：

Can you buy me a bottle of water, please? 请帮我买一瓶水好吗？
I'm going to the store to buy some water. 我要去商店买些水。
I always carry a water bottle with me in case I need to buy more water. 我总是带着水瓶，以防我需要再买水。
How much does a bottle of water cost here? 这里一瓶水多少钱？
I prefer to buy my own water rather than relying on the tap water. 我更喜欢自己买水，而不是依赖自来水。