The callow intern forgot to attach the contract before sending the email to the client.

那位初出茅廬的實習生寄電子郵件給客戶前，忘了附上合約。

Our manager patiently guided the callow sales team through their first quarterly review meeting.

我們經理耐心帶領初出茅廬的業務團隊，完成他們第一次季度檢討會議。

The hiring committee worried that the candidate seemed too callow to lead an international project.

招募委員會擔心這位應徵者太過稚嫩，無法領導國際專案。