Element of a cylinder
柱的母线
🧩 词语组成解析
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
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];
🗣️ 情景例句
Nope. I am in perfect health.
没有。我身体好的很。
You were late again this morning. I think you had better start being on time.
你早晨又迟到了，我想你最好开始守时。[托福]
I had a letter from my sister yesterday.
昨天我收到了姐姐的一封信，