🧩 词语组成解析
eigenvalue
['aɪdʒənˌvælju:]
n. 特征值;
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
He was very helpful to me, remember?
他帮过我大忙， 记得吗？
The petroleum region is centered largely in the north.
那里的石油区大部分集中在北部。
That's OK.
没关系。