Method of substitution
[化] 置换法
🧩 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];
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
Then you retired.
然后你退休了。
Take care of yourself and don't forget to keep in touch.
多多保重。别忘了保持联系。
The development of films with sound became a problem for Chaplin.
有声电影的研制对卓别林来说就成了问题。