heredity; (genetic) inheritance
practical use; application; conjugation; inflection
growth; development; growing up; growth (of a company, the economy, etc.)
fast; quick; early (in the day, etc.); premature; (too) soon; not yet
in name only; figurehead; (only) by name
reaching a peak; reaching the limit; plateauing; maxing out
ten; 10; ten years of age
child prodigy; infant genius; wonder child
20 years old; (arch.) twenty
to pass through; to pass by; to pass (of time); to elapse; to have expired; to have ended; to exceed
ordinary person; average person; man in the street; everyman; (a) nobody
difficult to ...; hard to ...
only; merely; approximately; about; just (finished, etc.); as if to; (as though) about to
rarity (esp. of collectables, trading cards, etc.)
to pin down; to hold down; to cover (esp. a part of one's body with one's hand); to clutch (a body part in pain); to get a hold of; to obtain
10^8; 100,000,000; hundred million
one Nth part (e.g. one fifth, one tenth); one out of N
to all appearances; no matter how you look at it
to refer to; to use as reference
disadvantage; drawback; demerit; bad point; minus
even if; even though; even; too; whether ... or ...; no matter (what, where, who, etc.)
perhaps; probably; generous; many; much
to exchange glances; to correspond; to counterbalance
advantage; benefit; merit; good point; plus
genius; prodigy; natural gift
when it becomes; when it comes to
method; process; manner; way; means; technique
by myself; in person; by oneself
declining; refusal; rejection; announcement; notice
to leave as; to view as; to maintain the status quo
still; much more; (not) yet; still a long way to go; still a long way off; not there yet
to be used up; to be run out; to be exhausted; to be consumed; to come to an end
extent; degree; limit; bounds; (span of) time; (a) distance; the state of
enough; sufficient; plenty; sufficiently; fully; thoroughly
to one's regret; regrettably; unfortunately; what can be done about ...; ... cannot be helped
not quite (right); not very good; somewhat (lacking)
pleasant feeling; pleasant sensation; pleasure
dangerous; risky; in danger; in jeopardy; uncertain; unreliable
beforehand; in advance; previously
life; existence; (one's) working life; career; life force; lifeblood