safeties
名词 safety:
the state of being certain that adverse effects will not be caused by some agent under defined conditions
同义词:safety
a safe place
a device designed to prevent injury
同义词:guard, safety, safety device
(baseball) the successful act of striking a baseball in such a way that the batter reaches base safely
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
同义词:condom, rubber, safety, safe, prophylactic
a score in American football; a player is tackled behind his own goal line
同义词:safety