Domain of validity
[计] 有效域, 有效范围
🧩 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];
🗣️ 情景例句
Thank you. I appreciate your help.
谢谢！很感谢你的帮助。
You'll cut yourself, if you don't take care.
你不专心的话，就会割到你自己。
I'm not sure I can do it.
恐怕这事我干不了。