Alcoa
abbr. 美国铝公司（Aluminum Company of America）
🗣️ 情景例句
A positive solution
一个好法子
Are you a native Chinese?
你是土生土长的中国人吗？
But the historian attempting to reconstruct the distant past is always faced with a difficult task.
但是，历史学家企图重现遥远的过去可是一项艰巨的任务，