root of an evil; source of a problem; source of trouble; cause of misfortune
well-versed (in); profoundly knowledgeable (about); high in the attainment (of)
playful; mischievous; joker; prankster; scamp
sleek; smooth; thin (of a liquid); without hesitation or delay
anywhere; here and there; common; run-of-the-mill; ordinary
applications; uses; how to operate; operation procedures
repeatedly; over and over again; several layers deep; layer upon layer; row upon row
human intellect; knowledge
one chance; only opportunity; maybe; perhaps; one-night stand
jet; spray; injection; jet propulsion
shooting range; firing range
to use as an intermediary; to mediate; to assist; to worry; to mind; to care
to praise extravagantly; to lionize; to lionise; to make much of
consistency; coherence; one kan (approx. 3.75 kg, 8.3 lb); one piece of sushi
snack (to have with a drink); side dish
brand name; trade name; product name
to connect; to correlate; to associate; to relate; to link
only one (person, thing); sole; highest; best; custom-made
green; greenery (esp. fresh verdure)
sound (of a sentence); euphony
sale of goods (as opposed to services)
label (i.e. sticker); label (i.e. record label)
business practice; business method; commerce; commercial law
great laughter; burst of laughter
commercialization (e.g. product); commodification
newsworthiness; news hook; topicality; popularity (of a topic, issue, etc.)
departure; setting off; being used up; being consumed; passage of time; lapse; rehearsal
beating (of the heart, with joy, excitement, etc.); palpitation; throbbing; pounding; fluttering
18 certificate; R-18; restricted to those 18 years or older
salesperson; shop assistant; hawker; (arch.) male prostitute
to split; to be split; to splinter
ironclad rule; inviolable rule; invariable principle; iron law
to yearn for; to pine; to be deeply in love with
chime; bell (e.g. doorbell)