flute; fife; pipe; whistle
pipe; tube; gun barrel; gun; cannon; well lining
puzzled; perplexed; quizzical; dubious; suspicious
to knit one's brows (in discomfort, unease, disapproval, etc.); to raise one's eyebrows; to frown
sudden; abrupt; urgent; pressing; steep; sharp; rapid
to get cloudy; to cloud over; to cloud up; to fog up; to be gloomy; to be clouded (expression)
to get worse; to deteriorate; to go from bad to worse; to spoil (of food); to go bad; to perish
pitch-dark; pitch-black; completely dark; very bleak (future); utterly hopeless
vigilance; caution; alertness; precaution; being on guard
star (usu. excluding the Sun); planet (usu. excluding Earth); star (glyph, symbol, shape); asterisk; star (actor, player, etc.); dot; spot
to be found; to be discovered
time; season; period; phase; stage
the past; bygone days; one's past (that one would prefer remained secret); past (tense); preterit; previous life
click-clack; clickety-click; clicking sound; clattering sound
multicolored; multicoloured; of various colors; diverse; of all kinds; all manners of
switching on and off (of a light); flashing; blinking; flickering
data processing; information processing
retro; nostalgic; old-fashioned
throughput; processing power
one or two; a couple; a few; first and second (place); the top two
May; fifth month of the lunar calendar
area; region; district; locality
center; centre; middle; -centered; -centred; -focused
circumference; outskirts; environs; (computer) peripheral
gas (as a fuel); gas (state of matter); poison gas; dense fog; thick fog; gas stove; gas cooker
it cannot be that ...; it is highly unlikely that ...; it is impossible that ...
doubt; suspicion; question; strangeness
to stand in the way (esp. with legs spread out); to block the way; to stand in the way (e.g. of progress); to obstruct
trembling (with fear, anger, etc.); shivering (with cold); shaking; quivering
Moon; month; moonlight; (a) moon; natural satellite
before long; soon; almost; nearly; finally; in the end
wolf (Canis lupus); wolf in sheep's clothing; womanizer
above ground; on the ground; earth's surface; this world; this earth
to go down and stand; to alight; to get down
whale shark (Rhincodon typus)