replenishment; supplementation; supplement; replacement; refilling
vice versa; also the converse; reverse is true
low-altitude flying; having consistently poor results (grades, sales, etc.); barely scraping by; being on the verge of failing
(instruction) manual; operations manual; basic rules (pertaining to how a job should be carried out); (car with) manual transmission
shock; tremor; impact; vibration
(sound of one's) heartbeat
eye measurement; measure with eye
X; x; unknown quantity; an unknown
to go upstream; to go back (in time, to origin); to date back to; to trace back to
vehicle; conveyance; transport; ride (playground, fair, carnival); playground facility
to be a match for; to rival; to equal; to compare with; to be equivalent to
motorcycle; motorbike; bicycle
gear; speed (e.g. 4-speed transmission)
inadvertently; for no special reason; truthfully; unexpectedly; after realizing; without knowing
paving (a road); surfacing (with asphalt, concrete, etc.); pavement
highway; freeway; expressway; motorway
slip; skid; slip (i.e. petticoat); slip (of paper); Serial Link IP; SLIP
to go past (a place or thing); to go beyond
examination; exam; test; trial; experiment; test
trial product; prototype model
useful thing; usable article
ship; boat; tank; tub; counter for boat-shaped containers (e.g. of sashimi)
collaborator; cooperator; coworker; ally
operating (e.g. ships, aircraft)
to invent a pretext for a quarrel; to pick a fight
nothing special; no big deal; doesn't matter
landing; alighting; touch down
magnificent; grand; fair; square; grandly; boldly
distinction (e.g. between right and wrong, public and private, etc.)
very much; exceedingly; extremely
to grant someone's request
to keep one's mouth shut; to refuse to talk
with a click; with a snap; ornamental clip (hair, obi, etc.)
to ring; to sound; to be popular; to be esteemed; to state; to insist
in conflict; incompatible; out of harmony; running counter; mutually exclusive; clashing with
to make way for; to make room for; to get out of the way; to pave the way for; to open up opportunity