Serpentine often contains some asbestos , and should be used with caution .因为蛇纹石往往包含了一些石棉，收集时应谨慎。...serpentine woodland pathways.蜿蜒的林间小路The method is presented for preparation metasilicate pentahydrate from residue after...
the serpentine course of the river蜿蜒曲折的河道Serpentine often contains some asbestos , and should be used with caution .因为蛇纹石往往包含了一些石棉，收集时应谨慎。One part of the Serpentine is kept for swimmers.蜿蜒河的一段划为游泳区....
他张开手指蒙住了脸。He splayed his fingers across his face.该报道称犯人常会被蒙住双眼。The report says prisoners were often kept blindfolded.他们每个人的眼睛都被一块红色大手巾蒙住了.They were each blindfolded with big red handkerchiefs....