一起读原著：Where the Mountain Meets the Moon 月夜仙踪 Chapter 39&40 阅读任务

问题

According to chapter39, what did the string turn into?

Why did the dragon and the Queen Mother agree to give up the pearl?

There are some changes in Ma. Please say something about it.

翻译

“It is a string of destiny,” Dragon said, as he tried again without success to cut the thread with his claw.

The thread seemed to endlessly unwind. Even as the kite climbed upward becoming the size of a name chop mark, the string continued.

As the sky deepened like brewing tea, Minli and the dragon looked in silence at the red line reaching to the heavens.

要求：

1.尽量回答上面问题

2.思考：

As the dragon looked at it, a tear of exhaustion and joy fell from his eye and landed on the pearl. 你觉得这句话中的tear包含了哪几层含义，请说说你的理解。