文成

In 2007, Barrington Irving became the youngest person to fly alone around the world.

2007年，巴林顿·欧文成为独自驾驶飞机环游世界的最年轻的飞行员。

With John´s help, Kevin passed math tests successfully, and he seldom bullied anyone.

在约翰的帮助下，凯文成功通过了数学考试，并且也很少欺负人了。

A survey by American Councils for International Education showed that there were 227,086 Chinese learners across the formal US education system, making Chinese the third most popular language being studied.

美国国际教育委员会的一项调查显示，在美国的整个正规教育体系中，有227，086名学习中文的人，使中文成为第三大最受欢迎的语言学习。

In 641, Songtsan Gambo, the ruler of the Tubo kingdom, asked his people to build it for princess Wencheng of the Tang Dynasty.

641年，吐蕃统治者松赞干布要求他的人民为唐朝文成公主建造这座桥。

The solutions of this paper almost agree with the exact solutions.

本文成果跟精确解是良好吻合的。