Dalembertian
达兰伯算符
🗣️ 情景例句
OK, we have let you know as early as possible.
好的，我们会让你们尽早知道。
He went to grade school in New york and high school in Cicargo.
他在纽约上小学并在Cicargo上高中。
Work on it had begun before my sister left.
这栋房子在我姐姐离开之前就已动工了，