婆罗摩火山是一座灰色的山，但是没有我想象的那么咄咄逼人。在火山灰上向上骑的这一段路是我一生中骑得最好的了。
Bromo is a grey stack but less menacing than I had expected and going up the powdery lava runs ranks as one of the best rides of my life.
黄段子是指那些含有内容淫秽的短信，灰段子和黑段子是指那些提供法律灰色地带产品和服务的垃圾信息。
Yellow refers to the smutty type, and grey or black to spam messages, many of which offer products or services of various shades of legality.
在埃亚非德拉火山爆发中，热气团冲破熔岩表面，产生的冲击波可以穿破灰色的火山灰烟尘。
With Eyjafjallajokull, pockets of hot gas blasted through the surface of the lava, generating shock waves that can be seen passing through the grey smoke of the volcano.
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