Leaf of descartes
[计] 笛卡儿蔓叶线
🧩 词语组成解析
leaf
[lif]
n. 叶子;页;叶状的结构;金属薄片;
vt.& vi. 翻书（报）;
vi. 生叶;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 笛卡尔(法国哲学家、数学家,1596-1690)
🗣️ 情景例句
Which band of College English Test have you passed?
大学英语考试过了几级？
You can ease up.
你就放心好了。
The deepest holes of all are made for oil, and they go down to as much as 25,000 feet.
在所有洞穴中，为寻找石油所钻的洞是最深的，这些洞可深达25，000英尺。