Borcarite
单斜碳镁钙硼石
🗣️ 情景例句
Youth boredom is the main culprit behind youth crime.
年轻人的无聊是青少年犯罪最大原因。
Grain by grain and hen fills her belly.
一粒一粒啄米，母鸡填饱肚皮。
My teacher's name is Miss Gao. At school I have a friend. His name is Li Lei.
我的老师是高小姐，我在学校里有一个朋友。他叫李磊。