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来源:雅诚德英语网
There are classic cone-shaped ones and also volcanoes in the shape of a puddle or a lake with a blowing bubble in the middle.
有经典的锥形火山,也有形如水坑或湖泊、中心冒泡的火山。
There are classic cone-shaped ones and also volcanoes in the shape of a puddle or a lake with a blowing bubble in the middle.
有经典的锥形火山,也有形如水坑或湖泊、中心冒泡的火山。