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Supplement (p-v)

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persist (v)
continue to exist
prenatal (adj)
bevor birth, antenatal
reliable (adj)
sth or someone can be trusted or believed
reflect (v)
show; express
reflection (n)
sth is a sign of sth
retain (v)
keep, remember
regardless (adv)
sample (n)
a group of people taken for scientific testing or analysis
table (n)
a set of data arranged in rows and columns
trigger (v)
to start
utilise (v)
to use sth in a effective way
ultimately (adv)
validity (adj)
able to be accepted
validate (v)
to make sth acceptable, especially after examining it