Thick black smoke billowed over the scene...在这一场景中浓浓的黑烟滚滚升起。Thick black smoke billowed over the scene.在这一场景中浓浓的黑烟滚滚升起。The curtains billowed madly as the wind caught them.风吹着窗帘，窗帘鼓了起来。Dense smoke swirled and billowed, its...
Jadeite jade consists of minerals of pyroxene, amphibole and feldspar groups.翡翠由辉石族 、 角闪石族、长石族矿物组成.This paper discusses the definition and the texture types of jadeite jade.摘要翡翠的结构是决定翡翠质量的重要因素.It must be advance standard...