✔ 最佳答案
To: All Staffs:
I announce that XXXX has resigned from xxx deparment and his/her last day is . XXXX has been with XXXX department since .
XXXX replacement will be onboard on . The new staff is called XXXX.
Finally, I would like to express my thanks to XXXX for his hardwork and dedication to the job over the past year. Please join me in wishing XXXX every success in his new endeavor.
Best regards,
XXXXXX