During the meeting, the director expatiated on the new budget plan for nearly an hour.

會議中，處長針對新的預算計畫詳細闡述了將近一小時。

In her email, the manager expatiated on why the shipment to Osaka was delayed.

經理在電子郵件中詳細說明了寄往大阪的貨物延誤的原因。

The candidate expatiated on his overseas sales experience when the interviewer asked for details.

面試官請他多說一些時，這位應徵者詳細闡述了自己的海外業務經驗。