How to pronounce word in English - Learn English free online - a- - How to pronounce the english word a- in english. Start with S. Learn from me.

pref. 处于...状态或过程中；在…之上；朝着；用于加强语气

a leg-up扶持;搭把手;助一臂之力

a stand-out杰出人才;杰出人物

a cure-all包治百病

a half-holiday一次半天假

A Coruna-Rose阿科鲁尼亚

A clip-on用夹上去的

a half-wit弱智者

a T-shirt一件T恤衫;一件上衣;一件;汗衫

a fortune-teller不要作算命先生

a drink-driving酒后驾车

医药科学

a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation

同义词：angstromangstrom unitA

any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes

同义词：vitamin Aantiophthalmic factoraxerophtholA

one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)

同义词：deoxyadenosine monophosphateA

(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA

同义词：adenineA

the basic unit of electric current adopted under the Systeme International d'Unites

同义词：ampereampA

the 1st letter of the Roman alphabet

同义词：Aletter a

the blood group whose red cells carry the A antigen

同义词：Atype Agroup A

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