a clear plastic cover worn over the face to protect the person wearing it from viruses, chemicals, thrown objects, etc.

Employees did not wear personal protective equipment, such as gowns, aprons, gloves, masks or face shields, while caring for patients. 雇员在护理病人时没有穿戴个人防护用品，如长罩衣、围裙、手套、口罩或面罩。

Officers wearing helmets with face shields lined the edge of the sidewalk. 戴着头盔和面罩的警察在人行道边上排起了长队。