Staff Rushed To Save 33 Kids After Car Hit Daycare And Sparked Fire Pennsylvania Day E Center Kills 5 Children 4 Of Them Siblings
For staff in the sense of a body of employees, the plural is always staffs; Working as a member of the group of people employed by an organization or business. 例子： we have a full time nurse on staff.
Fire kills 5 kids at house with home daycare
Otherwise, both staffs and staves are acceptable, except in compounds;
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