to scarce as hen’s teeth

十分罕见  detail>>

scarce

 adj.  (scarcer; scarcest) 1.〔用作表语[主词补语]〕(生活必需品)缺乏，不足 (of)。 2.稀有的，罕见的，珍贵的，难...  detail>>

a hen on

策划中的阴谋 阴谋  detail>>

hen

 n.  1.母鸡。 2.雌氘；雌鱼[虾、蟹等]。  短语和例子   a hen sparrow 雌麻雀。 a...  detail>>

factor scarce

要素稀缺  detail>>

get scarce

变得稀少  detail>>

scarce capacity

稀有的生产能力  detail>>

scarce commodity

稀缺商品  detail>>

scarce currency

稀有货币,稀少货币 稀有通货  detail>>

scarce factors

稀少性因素  detail>>

scarce goods

短缺商品 稀缺商品  detail>>

scarce inputs

稀缺投入物  detail>>

scarce mrna

稀有mrna  detail>>

scarce mrnas

稀有mrna  detail>>

scarce product

短线产品  detail>>

scarce resource

稀缺资源 稀少资源  detail>>

scarce resources

稀缺资源 稀少资源  detail>>

scarce sort

原稿中重复出现  detail>>