防止的近义词、同义词

try to prevent; show opposition to; "We should discourage this practice among our youth"

prevent the occurrence of; prevent from happening; "Let's avoid a confrontation"; "head off a confrontation"; "avert a strike"

keep from happening or arising; make impossible; "My sense of tact forbids an honest answer"; "Your role in the projects precludes your involvement in the competitive project"

take precautions in order to avoid some unwanted consequence; "guard against becoming too friendly with the staff"; "guard against infection"