Of mutations theory
[医] 突变学说
🧩 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. [遗] 突变；变化；转变（mutation的复数形式）
🗣️ 情景例句
I said I'd give her an answer in a few days ...
我说这几天给她回答……
I really don't know.
我真不知道。
I decided to take her by train.
我决定带她乘火车去。