Additivity of sum of squares
[化] 平方和加和性
🧩 词语组成解析
[化] 相加性; 加成性; 叠加性
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];
sum
[sʌm]
n. 总数;算术;金额;概略，要点;
vt.& vi. 总计;总结，概括;归纳;
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. 广场；方钢；直角尺；正方形（square的复数形式）
🗣️ 情景例句
Yes, we have. For how many?
有，要几张？
Did you go running this morning?
你今早去跑步了吗？
Oh, doctor. He seems terribly ill. Are you sure it's nothing serious?
噢，医生。他似乎病得很厉害。你肯定不是什么大病？