🧩 词语组成解析
undertaking
['ʌndɚ'tekɪŋ]
n. 企业;事业;殡仪事业;保证;
v. 担任( undertake的现在分词);着手作;
under下+tak进行+ing名词后缀→承诺；事业，企业，殡仪业
🗣️ 情景例句
You keep getting fatter and fatter.
你一天比一天胖。
Call me tomorrow if you don't feel better.
明天如果没有好转，就打电话给我。
That's OK!
没关系。