geysers

1.Volcanoes and geysers erupt.

火山和间歇喷泉能喷发。

2.Geysers emit water.

间歇泉喷出水来。

3.The geyser erupts periodically.

间歇泉周期地喷发。

4.Steam erupted from the geyser.

蒸气从热水锅炉里冒出。