Betonac
金属混凝土(混凝土内含有细粒金属骨料)
🗣️ 情景例句
Who's Charley Rafer?
谁是Charley Rafer？
I want to welcome you all here for the fourth annual meeting of our Asian sales staff.
欢迎所有来参加我们亚洲推销员第四届年会的代表。
They have to work hard to support their family.
他们必须努力工作来支持他们的家。