difficult to ...; hard to ...
implementation (e.g. of a feature); installation (of equipment); mounting; packaging
opinion; intention; thought
sometimes; occasionally; at times; seasonal; of the season; appropriate (for the season or occasion)
updating a software version; version upgrade; upgrading
often; again and again; frequently; repeatedly
to rise to the surface; to surface; to stand out (e.g. against a background)
distortion (often used for caricature in manga, etc.); deformation
change for the better; improvement; looking better (than before)
unobstructed view; perspective; forecast; outlook; insight; foresight
here and there; in places
to dash against (of waves); to billow; to roll; to wave (e.g. in the wind); to heave; to pound (of a heart)
hill; height; knoll; bonus points awarded to the winner at the end of a game
being dotted with; being scattered
terrain; geographical features; topography
advantageous; favourable; better; profitable; lucrative; gainful
mechanic; mechanical; mechanism; technique (e.g. in piano-playing)
robot; (mere) puppet; pawn; figurehead
puppet; marionette; puppeteer; (arch.) prostitute
to be buried; to be covered; to overflow; to be crowded; to be repaid (e.g. debt); to be replenished
hyperbolic curve; hyperbola
mostly; nearly; practically; well-nigh; almost invariably; all but
if anything; if pushed I'd say; if I had to say
in this manner; in this way; like this
nonglutinous grain (not sticky enough to make mochi rice cakes)
and so on; and so forth; et cetera; comment; criticism
chief; main; principal; major
to track down; to locate; to find out; to smoke out; to ferret out; to chase up
advance; moving forward; progress
scorpion (Scorpiones spp.)
to rush on; to attack; to swoop down on
armoring; armouring; armor; armour
surprise attack; surprise visit; catching a person off guard
to defend oneself; to protect oneself
killing two birds with one stone
satisfaction; pride; one's strong point; one's forte; regular customer; regular client
least; lowest; worst; awful; horrible; at the very least
rip-off; unfair overcharging; clip joint
to insert; to put in (such that there is a snug fit); to have sex; to fuck; to pigeonhole (into a particular category); to place a ring-shaped object around something (esp. one that restricts freedom, such as handcuffs)
hollow; cavity; dent; depression