英语听力精选进阶版 13265(在线收听

Scientists map potato genome

Vocabulary

humble

ordinary

food crop

collection of plants grown in large amounts cultivated for eating

a global annual yield

total world production in a year

chemical blueprint

biological instructions

deciphering

discovering the meaning (of something)

traits

characteristics, features

starchiness

carbohydrate content

breeders

people who keep plants or animals for reproduction

breakthrough

major achievement or success that permits further progress

soaring

rapidly increasing

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