连衣裙的

Geophysical inversion is a very difficult problem due to its non_linear nature.

由于非线性特性地球物理反演一直以来都是一个比较困难的问题。

On July 3, General George Washington of Virginia had taken command of the American rabble.

在7月3日，维吉尼亚的乔治华盛顿将军掌握了这群北美"暴民"武装的指挥权。