geyser|geysers

我们刚安装了一个新热水器，现在随时都有热水用。

We just installed a new ___geyser, so we have hot water anytime now.

间歇泉喷发时，水柱和蒸汽能冲到很高的空中。

The ___geysers shoot water and steam high into the air when they erupt.

间歇泉喷发时形成的水汽柱非常壮观。

The water and steam column from the erupting ___geyser was spectacular.