Graphidox
硅钙钛铁合金
🗣️ 情景例句
How are you?
你好吗？
The more we study, the more we discover our ignorance.
学得越多，就越发觉自己无知。
the man sadly picked up the mattress and carried it into his house.
伤心地捡起了床垫，把它拿进了屋。