The middle button of his uniform jacket was strained over his belly.制服上装中间的纽扣在他的肚子上绷得紧紧的。He was short and fat, with a large beer belly.他又矮又胖，挺着个大啤酒肚。I really can't afford to see this company go belly up.我绝对不能眼睁睁地看着这...
云仙山今天一直在向外喷涌火山灰、气体和火山岩。Mount Unzen has been spewing out volcanic ash, gas, and rock today.玄武岩是最普通的火山岩.Basalt is the commonest volcanic rock.火山岩在正常情况下有强的磁化率.Volanic rocks have high susceptibilities under normal conditions...