故意用英语是指 "intentionally" 或 "deliberately"。这两个词都有"故意地"、"有意地"的意思。

来源：

intentionally 来自英语动词 intend，有"打算"、"想要"的意思。

deliberately 来自英语动词 deliberate，有"深思熟虑"、"仔细考虑"的意思。

下面是一些例句：

She intentionally dropped her phone on the floor. 她故意把手机掉在地上。

He deliberately lied to me. 他故意对我撒谎。

They intentionally broke the rules. 他们故意违反规则。

She deliberately chose the wrong answer. 她故意选择错误的答案。