Pentafluorated
五氟化的
🗣️ 情景例句
but I have some of the pictures.
但我手头有一些照片。
Learn to say before you sing.
按部就班。
The smoke from the fire rose and found its way outside and the light danced over the roof of the cave.
缕缕青烟从火中升起，飘出洞外，火光在洞顶上闪耀。