research and development; R&D
clean water; purified water
(an) unknown; unknown number; variable; unknown quantity; not yet known
forevermore; for eternity
whole nation; whole land; whole country
to hand over; to turn over; to cede
hostility; animosity; enmity
peace; quiet; tranquility; tranquillity
(find) common (meeting) ground
earnest; sincere; pressing; urgent; pertinent; appropriate
to rub; to chafe; to wear out; to become worn; to lose one's innocence; to become sly
besides; in addition; also; moreover
to lower one's voice; to speak with a hushed voice
last stand; last bastion; last stronghold; last frontier
evacuation site; refuge shelter; shelter
(right at the) side; just beside
lifeline; matter of life or death; indispensable thing; life line (in palm reading)
patience; perseverance; persistence; tenacity; energy
low birth; humble origin; lowly; base; vulgar
tide; current; tendency; trend
to look displeased; to frown; to scowl; to look grave; to look serious
to be at one's wits' end; to be cornered; to be in a fix; to be in a desperate situation; to be in a pinch; to be in a predicament
to sell (something) cheap
to take over; to obtain by transfer; to inherit; to buy; to purchase
leased territory; foreign concession
effective control (over territory); working control
to remain; to stay (somewhere)
cushion to soften the blow; something that cushions the blow
just; justifiable; right; due; proper; equitable
demotion; relegation; downgrading
guidance; lead; introduction; good offices; guide; primer
to protect; to guard; to defend; to keep (i.e. a promise); to abide (by the rules); to observe
difference (of opinion); strange; odd; different
suitable time; good time; propriety; moderation
living in evacuation shelters
notice; notification; permission; consent; rejection; refusal