当处长

be department head

→ 当
phrase Rare #32,609
be department head 当 means to serve or work as; 处长 is the head of an administrative department or division.
CH: 她希望明年能当处长。
EN: She hopes to become a department head next year.

要是我当处长就好了

If only I were the department head.

— 办公室的故事 (1977)

您跟我套近乎想当处长难道这不是一大发明吗

Isn't your trying to cozy up to me so you can become a division chief a major invention?

— 办公室的故事 (1977)

不然我要再提你当处长的事

Otherwise, I'll bring up promoting you to department head again.

— 办公室的故事 (1977)