easy; simple; handy; quick; effortless
to cast a shadow; to appear; to loom (of a threat, etc.); to manifest (of symptoms, etc.)
uneasy; ill at ease; upset; agitated; perturbed
one line; (a) single line; boundary; line (between things); forefront; front line
one-year-old; one year old
age difference; disparity in age; age gap
ripple (on water); wavelets; ripple (e.g. of uneasiness); unrest; disturbance
height (e.g. of summer); peak (e.g. of cherry blossom season); prime (of one's life); (one's) best days; (being in) heat; rut
to worry (about); to fuss (over); to be careful (about); to pay attention (to); to take (good) care of
going up and down; ascent and descent; climb and descent
ascent; climbing; up-train; train heading toward the starting point of its route; upbound (esp. toward Tokyo); upstream
down-train; train heading toward the ending point of its route; down-slope; downward going; downbound (esp. away from Tokyo); downstream
forwarding; sending on; redirecting (e.g. mail); deadheading (e.g. train); (train) returning to the station
to indulge in; to give oneself up to; to be obsessed by; to be engrossed in; to be lost in; to be absorbed in
staunch; hardcore; dyed-in-the-wool; metal reinforcement
low orbit; low Earth orbit; LEO
bare eyes (i.e. without glasses, contact lenses, etc.); uncorrected vision; unaided vision
actually; in fact; as a matter of fact
momentous (crucial) decision
it's no joke; gimme a break!
to run through; to run past
advance or retreat; moving forwards or backwards; course of action; behaviour; remaining in one's post or resigning; staying or leaving
to reach an extreme; to reach a limit; extremely; to be stuck; to be in a dilemma; to be decided
cake or snack served with tea
rear-service duty; duty away from the front lines; logistics and support duty (behind the combat zone)
shrewdness; sharpness; astuteness; acumen; tact
groundless fear; thinking too much; making too much of
successive generations; successive emperors
to devise; to plot; to plan
moratorium; period of grace; extension (of time, e.g. to make payments); postponement (of social responsibility); immaturity; not having developed emotional maturity
independence from parents
to do exactly what one is told to do; to be subservient; to be easily controlled
marriage breakup; divorce; engagement breakup
loss and gain; advantage and disadvantage
profit; advantage; benefit; rebirth in paradise, entering nirvana