An undersea volcano erupted off the coast of Tonga in the South Pacific Ocean recently, sending plumes of smoke, ash and steam high into the air.

• 近日，南太平洋岛国汤加附近海域的一座海底火山突然喷发，浓烟、灰烬连同蒸汽一同直冲高空，景象极为罕见。