“上部”在英语中常见的表达有 upper part、upper section 或 top part(具体使用哪个取决于语境) 。例如:
The upper part of the mountain is covered with snow all year round.(这座山的上部终年积雪。 )
The upper section of the painting depicts a beautiful sky.(这幅画的上部描绘了一片美丽的天空。 )
There's a small stain on the top part of the page.(页面上部有一个小污渍。 )