major

The city is facing a major traffic problem due to the collapse of the main bridge.

(Chinese) 由于大桥坍塌，该市正面临着严重的交通问题。

He underwent a major surgery that lasted over eight hours.

(Chinese) 他经历了一场持续八个多小时的大手术。

Most happy and bright songs are written in a major key.

(Chinese) 大多数欢快明亮的歌曲都是用大调创作的。

The symphony begins with a powerful chord in C major.

(Chinese) 这部交响曲以一个强有力的C大调和弦开始。

She decided to change her major from history to computer science in her sophomore year.

(Chinese) 她在二年级时决定将专业从历史系改为计算机科学系。

What is your major at the University of California?

(Chinese) 你在加州大学的主修专业是什么？

I plan to major in international relations to prepare for a diplomatic career.

(Chinese) 我打算主修国际关系，为外交生涯做准备。

Many students major in business hoping for better job prospects.

(Chinese) 许多学生主修商业，希望能有更好的就业前景。

The major gave the order for the troops to advance toward the border.

(Chinese) 少校下令部队向边境推进。

After ten years of service, he was finally promoted to the rank of major.

(Chinese) 服役十年后，他终于被提升为少校军衔。