Theory of strainless rings
[化] 萨克斯-莫尔理论
🧩 词语组成解析
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. 吊环（ring的复数）
🗣️ 情景例句
They have an opening.
他们有一个空房间。
It's faster but more expensive to ship goods by air.
空运较快但运费较高。
Yes, I am.
是的。