potency
UK ['pəʊ.tənt.si] US ['poʊ.tˌənt-] noun uncountable
■strength, influence or effectiveness 力量；影响力；效力•This new drug's potency is not yet known.这种新药的效力目前还不清楚。 •He owed his popular support to the potency of his propaganda machine.他获得广泛支持，他将这归功于他的宣传机器的力量。 ■a man's ability to have sex （男子的）性能力•Consuming large amounts of alcohol can significantly reduce a man's potency.大量饮酒会大大降低男子的性机能。 Compare impotence |