消防员用英语可以称为 "firefighter"。这个词是由两个英文单词 "fire" 和 "fighter" 组成的。"Fire" 意为 "火"，"fighter" 意为 "斗争者"，所以 "firefighter" 的意思就是 "扑灭火的人"。

下面是一些英文例句及其中文翻译：

The firefighters arrived at the scene just in time to put out the fire. (消防员们正好赶到现场，扑灭了火。)

She became a firefighter because she wanted to help people in need. (她成为了消防员，因为她想帮助需要帮助的人。)

The firefighter rescued the cat from the burning building. (消防员把猫从燃烧的建筑物中救出来。)

The firefighters trained hard to prepare for emergencies. (消防员们训练努力，为紧急情况做准备。)