degradation over time; time-related deterioration
change; alteration; modification
reset; fresh start; new beginning
large scale integrated circuit; LSI
semiconductor; solid-state
raw materials; ingredients
division (distribution) of roles; role-sharing
Cambrian explosion (of life)
four legs; four-legged; quadruped
state; condition; the way things should be; ideal state; truth
disposal; abandonment; scrapping; annulment; cancellation; abrogation
unshapely; ill-formed; misshapen; awkward; clumsy
at that (very) moment; just then
to come to a dead end; to come to a standstill; to reach a deadlock; to reach an impasse; to reach a stalemate
(computer) storage cell; storage element
to spoil; to break; to go bad; to go wrong; to fail
tundra; sharp and sarcastic without ever acting lovestruck
blizzard; furious snowstorm
conifer; needle-leaved tree
group action; collective behavior; collective behaviour; acting as a group
fixed number; certain number; given number; definite number
coexistence; living together; symbiosis; paragenesis
fractional distillation; fractionation
oxidizing agent; oxidant; oxidizer
to make progress; to develop; to evolve (method, style, etc.)
Harbour Ward (e.g. in Tokyo)
cannabis (Cannabis sativa); hemp (plant); hemp (fiber); linen; flax
city centre (center) (esp. capital city); urban centre; heart of city a metropolis