difficult to ...; hard to ...
insertion; letter drop; things sent to a prisoner; supply of provisions, refreshments, etc. to someone carrying out a task
tough; hard; determined; strong-minded; strong (e.g. sunlight, alcohol); severe
rest; break; recess; intermission
robot; (mere) puppet; pawn; figurehead
change of pace; change of mood; (mental) break (e.g. going for a walk); refreshment
technology; engineering; technique; skill; art; craft
I got it; I see; I now know; So that's the reason
maid; helper; help; assistance
one; 1; best; first; foremost; beginning; start
to add; to add up; to increase; to gather (e.g. speed); to include; to count in
influence; effect; to influence; to affect; to have an influence on
to add (numbers); to add (something); to top up (with something); to take care of (e.g. one's business)
when it comes to ...; where ... is concerned; if it's the case that ...; if it turns out that ...; if it's true that ...
essential; important; crucial; vital; main
course correction; trajectory change; orbital adjustment
continuation; rest (of the story, work, etc.); flow (e.g. of a piece of writing); pacing (of a story); succession (of); sequence
mechanism; mechanics; machines; mechanic
talented; gifted; prodigious; virtuoso; masterful
foot; paw; leg; gait; pace; bottom structural component (i.e. radical) of a kanji; (arch.) money
firmly; solidly; sturdily; strongly; toughly
weapon; arms; ordnance; weapon (something used to gain an advantage); asset
vivid (memory, description, etc.); fresh; graphic; fresh (blood, scar, etc.); still new; recent
wing; Chinese "Wings" constellation (one of the 28 mansions); (arch.) counter for birds or bird wings
running out of battery; battery depletion; going flat; loss of energy; depletion of stamina
dozing off in the middle of doing something (esp. in an online chat or during an online game); becoming inactive due to falling asleep
Japanese clethra; tree clethra; clethra barbinervis
to wake up; to awake; to perk up; to awaken (to the truth, etc.); to come to a realization; to come to one's senses
through; throughout; through (the good offices of); by way of
to say all kinds of things; to complain; to find fault (with)
sense of duty; sense of purpose; vocation
secret base; hideout; hidden position