exploration party; expedition team
inner psychological world; mental world; spiritual world
hollow; mid-air; air; sky
both extremities; North and South Poles; positive and negative poles
direct line; direct communication; connecting directly; through service; nonstop service
to get used to living (in); to live (somewhere) for a long time
to be defeated; to be beaten; to be unsuccessful; to lose
escape; flight; breakout; fleeing; desertion
to throw oneself (into an activity)
stale; hackneyed; clichéd
Japanese linden (Tilia japonica)
tangent line; tangential line
highwayman; bandit; brigand; highway robbery (of money, clothing, belongings); holdup; mugging
to devote oneself; to do one thing exclusively; to make a job of; to decide to
rank (of troops); line; formation; array; procession
firm; solid; inflexible; immovable
by (means of); by doing; due to; via; through
adhering to (a view, policy, etc.); sticking to; holding fast to; steadfastly maintaining
reason; logic; method; system; order
unconsciously; without knowing it; unwittingly; unawares
to feel down; to feel sad; to be in a slump (business, economy, etc.); to be in an unfavourable condition; to fall into (e.g. a hole)
order; discipline; regularity; system; method
approval; license; licence; permission
multistoried building; castle; palace; shrine
not necessarily so; is not always true; there is no guarantee that ...; there is no telling