this is why; this means; it is the case that
two persons; two people; pair; couple
being very active; being very useful; playing a very active part; making a spectacular showing; great efforts; splendid work
backward glance; sidelong glance; faceless ghost with an eye in its rump
at leisure; in a relaxed manner; in a carefree manner; quietly; peacefully
individual; distinctive; unique; characteristic; personal; idiosyncratic
to compare; to make a comparison; to compete; to vie
appearance; (outward) looks; exterior appearance
interest; appeal; attraction; fun
young girl; lass; adolescent female
heat; fever; temperature; zeal; passion
one's line of sight; one's gaze; one's eyes (looking); glance; gaze; look
to receive; to get; to catch (e.g. a ball); to be struck by (wind, waves, sunlight, etc.); to sustain (damage); to incur (a loss); to undergo (e.g. surgery)
sometimes; at intervals; occasionally; on occasion; from time to time
for two people's eyes to meet; catching someone's eye; making eye contact; meeting a person's gaze
stiffening; rigidity; rigor; stiffness; ossification; petrification
I fear that it's likely that; with all due respect
comparatively; relatively; unexpectedly; unusually; considering; for one's ...
suddenly; casually; accidentally; incidentally; unexpectedly; unintentionally
(musical) time; tempo; beat; the moment; the instance; chance
damp; moist (negative nuance)
with a vroom; with a sudden shaking
chill; the shivers; shivering fit; cold; coldness; cold air
body; oneself; one's place; one's position; main part; meat (as opposed to bone, skin, etc.)
to (make something) quiver; to shake; to tremble; to vibrate
to turn one's face; to turn around; to look over one's shoulder
such; like that; that sort of; very
time; hour; occasion; case; chance; opportunity
direction; orientation; bearing; course (e.g. of action)
second-year student; biennial
really; very; extremely; (not) anything; (not) at all; (not) a bit
coincidence; chance; by chance; unexpectedly; contingency
indication; sign; hint; tone (of the market)
sometimes; occasionally; at times; seasonal; of the season; appropriate (for the season or occasion)
going to and fro; back and forth
new; novel; fresh; recent; latest; up-to-date
exactly; precisely; closely; tightly; properly; without fail
greeting; a fine thing to say
to do wholeheartedly; to put one's heart into something
sweets (desserts, candy, etc.)
right; right-hand side; afore-mentioned (esp. in vertical Japanese writing); foregoing; forgoing
to advance; to go forward; to precede; to go ahead (of); to make progress; to improve; to deepen
this time; now; next time; another time; recently; lately
special; particular; extraordinary; exceptional; especial