operating ratio; rate of operation; availability factor
degradation over time; time-related deterioration
not insignificant; not to be sneezed at
middle-age; middle age; midlife; one's middle years
to refuse; to decline; to deny
double track; two-track line
on hand; readily available
numerical value; numerics; reading (on a meter, etc.)
tension; tensile strength
protection; safeguard; guardianship; preservation; conservation
space debris; orbital debris
catch; catching; catch; shop tout; puller-in; catching (in swimming and boating); catching the water
rubbish; trash; garbage; refuse
introduction; outline; general remarks
monkey (esp. the Japanese macaque, Macaca fuscata); ape; sly person; idiot; hick; sliding wooden bolt (for holding a door or window shut); clasp used to control the height of a pot-hook
literary style; form of (written) language (e.g. classical, modern)
cartoon; comic; comic strip; manga
volume (of book); reel (of film); scroll (of books or paintings); roll (paper, etc.)
good thing; strong point; good family; prestigious school; the right moment; utter
difficulty; hardship; trouble; infeasibility; inability (to carry out)
goal; target; aim; mark; sign; landmark
often (happens); tend to; be apt to; be likely to
depravity; corruption; degradation
sense of impending crisis; sense of danger
bad condition; not to work out (i.e. a deal); disagreement; break-off; disorder; slump
operation (of machine); operating; running; working
to cause; to induce; to bring about a result or state; to produce
to pass; to pass on; to give (something) a miss; to cut it out; to knock off (for the day); to let the matter drop
garden (esp. with trees); park
by the way; incidentally; sometimes; occasionally; precisely (at that time); exactly
then; and then; and; if so; because then; if that's the case
sweetly (smiling); broadly (grinning)
to return (something); to restore; to turn over; to turn upside down; to pay back; to retaliate; to respond (with)
straight; straightforward; direct; neat (e.g. spirits); black (e.g. tea, coffee); entering university directly from high school; fast ball
this way (of doing); this method; this sort (of thing); this type
nonchalantly; calmly; as if nothing happened
the people; citizens; the populace