"the hospital has an excellent nursing staff"
"the general relied on his staff to make routine decisions"
"he walked with the help of a wooden staff"
"the dean addressed the letter to the entire staff of the university"
"This position is not always staffed"
"The two men staff the reception desk"
We want more staff.
我们需要更多的人员。
He is on the editorial staff of the newspaper.
注意on不能被in替代。