Quattuor
[醫] 四, 四倍
??? 情景例句
I intend to major in economics in college.
我想在大學里主修經濟學。
The Spring Festival lasts half a month until the Lantern Festival comes.
春節要持續半個月左右，直到無宵節來為止。
Before they were replaced by steamships,
在蒸汽船取代帆船之前。