F number
焦距比数
🧩 词语组成解析
🗣️ 情景例句
and collect the furniture we need.
募集我们需要的家具。
She's gone; my heart's broken.
她弃我而去；我心碎无声。
This immense chasm has been formed by an underground stream which has tunneled a course through a flaw in the rocks.
这个深邃的洞穴是由一条地下暗泉冲刷岩石中的缝隙并使之慢慢变大而形成的。