英语词汇“period of effectiveness/usefulness/validity/efficacy”的翻译、意思、用法、释义-英汉双解词典-雅致网

单词	period of effectiveness/usefulness/validity/efficacy
释义	请查阅词条：efficacy
随便看	badly maintained badly off badly off badly off for badly organized badly planned badly/poorly lit badly/poorly ventilated badly thought out badly thought-out badly timed badman bad-mannered bad mannered bad-mannered bad manners badmash bad match badmen bad mind bad-minded badminton badmintons bad money bad mood 为什么菊花能傲霜斗雪? 为什么菜粉蝶特别喜欢油菜花为什么菟丝子被称作＂寄生虫" 为什么萤火虫会发光为什么萤火虫会发光? 为什么萤火虫发出的光很亮，自己却不会被灼伤为什么落地的树叶都是背朝天? 为什么葛藤有可能成为荒漠先锋植物为什么董其昌的书法盛行于清代? 为什么蒜黄是黄的,青蒜是绿的? Munitionsdepot Munitionslager Munster munter Munterkeit Murat Murdoch Murmel Murmeln murmeln