Fopen
n. 树叶穿透；打开外部文件
🗣️ 情景例句
Easy does it, Robbie.
慢慢来， Robbie。
How much will it cost?
这种商品成本价是多少？
The undulating waves of the open sea are generated by three natural causes:
海浪是由三个自然因素形成的：