a (head of) sheep

• 一头羊

a (head of) sheep的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 a:

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

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

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

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

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

6. the 1st letter of the Roman alphabet

7. the blood group whose red cells carry the A antigen

a (head of) sheep的用法和样例：

例句

1. If even one sheep briefly went astray, points were deducted.
   即使只有一头羊短时间脱队，该队还是会被扣分。
2. Wilmut fused the udder cell with an egg from another sheep, after first removing all genetic material from the egg.
   威尔莫特先将取自另一头羊的卵子中的所有基因材料取出，再将该卵子与这一乳腺细胞融合。