A district should serve its clientele, namely students, staff, and parents.

一个学区应该服务于其主顾，即学生、教职员工和家长。

One group of people seems to be forgotten, namely pensioners.

一个群体似乎被遗忘了，就是那些退休人员。

They were hardly aware of the challenge facing them, namely, to re-establish prosperity.

他们几乎没有意识到自己面临的挑战，即恢复经济的繁荣。