1.《柯林斯高阶英语词典》认为 phone in 是 PHRASE,意思是“打电话请病假”,其释义为:If you phone in sick, you telephone your workplace to say that you will not come to work because you are ill.
2. 既然是 PHRASE,只要记住就可以了,无需细分句子成分(语言中有些习语不仅不能分析句子成分,而且无法从逻辑和常识方面作推断)。
3. 相关例句如:
He phoned in sick this morning. 他今天上午打电话来请病假。(《牛津短语动词词典》)
On Monday I was still upset and I phoned in sick to work. 星期一,我还是感觉不适,便打电话到单位请了病假。(《柯林斯高阶英语词典》)