great teacher; great master; great author; great doctor
to state one's opinion; to offer one's opinion; to opine
useless; vain; aimless; idle
to pile up; to heap up; to stack up; to repeat many times over; to go through repeatedly; to accumulate
tide; current; tendency; trend
background knowledge; prerequisite knowledge
to plant; to transplant; to instil (idea, feeling, etc.)
only; just; merely; no more than
few decades; many decades; several decades
self-; from ...; this ... (in contrast to some other ...); aforementioned
person from the same province, town, village, etc.
even scale; equilibrium; balance; equalization; equalisation
centre of gravity (center); centroid; barycenter; (one's) balance
merit; success; meritorious deed; achievement; accumulated experience
to send (someone) back; to send (someone) home
based on; built on; made from
tropics (of Cancer and Capricorn); regression line
solely; entirely; only; or
price; cost; value; worth; value
two places; two spots; two locations; two parts; two passages
camel; camel (cloth); cloth made from camel hair; camel (color); light yellowish brown
10,000; ten thousand; myriad; everything; all; (arch.) various
to come together; to merge; to fit; to match; to be profitable; to be equitable
what; you-know-what; that thing; whatsit; whachamacallit; (not) at all; (not) in the slightest
biggest; greatest; largest; maximum
pupil in ... year; student in ... year
half the face; one side; half; the other side; the reverse; the contrary
as a matter of fact; by the way; to tell you the truth; to be honest; frankly
to play a leading role; to play a central part
assuming that ...; supposing that ...