Volcanic ash is as soft as baby powder, if baby powder were made of microscopic shards of glass.
火山灰就像婴儿爽身粉般轻软，如果婴儿爽身粉是由细小的玻璃碎片做的话。
2
The microscopic dust and glass particles in volcanic ash can act like the smog particles that hover above cities and change the color of sunrises and sunsets.
火山尘埃中微小的粉尘与玻璃粒子就像飘浮在城市上空的烟雾颗粒，改变了日出日落的色彩。
3
Canada balsam: a viscous yellowish transparent resin obtained from the balsam fir and used as a cement for glass lenses and for mounting specimens on microscopic slides.