英语听力精选进阶版 13181（在线收听）

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prospective

possible or suitable

quest

long, difficult search or mission

likens

says something is similar

retrieval

getting back

samples

small parts of something, which have been collected

composition

things that are in an object, and how they are arranged

relates

is connected

bid

attempt or aim

to drill

to operate a machine which creates a hole in something solid

permitting

allowing, or making something possible