long in the tooth
growing old, old
一般例文
- I'm a bit long in the tooth to start being a student.
英字新聞からの例文
- 引用元 : Financial Times (by Richard Waters) - Dropbox prepares for IPO to fuel shift towards business (2018/03)
It is a business that has grown long in the tooth judged by the standards of tech start-ups, ...
