Quadratic variation
[计] 二次变分
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
🗣️ 情景例句
Let's build a fire and cook it!
咱们去升火煮鱼。
What is your guess about the outcome of this meeting?
你认为这项会议的结果将会如何呢？
Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。