to go upstream; to go up (a river); to go back (to the past or origin); to date back (to); to trace back (to)
old; aged; long; since long ago; of the distant past; long-ago
important; essential; significant; major; key; principal
one's duty; responsibilities pertaining to one's work
a lot; lots; enough; sufficient; enough; too many
producing (people) in great numbers; appearing one after the other
dealt hand consisting of one 20-point card and six 1-point cards; outstanding; standing out above the rest
active duty; active service; student taking (university) entrance exams while still enrolled in school; student who passed their university entrance exams on the first try
excitement; stimulation; agitation; arousal
or rather (say); or better (say); or perhaps I should say; or, how should I put it; I mean
interest (in something); curiosity (about something); zest (for)
an order of magnitude higher; off by a digit; in a different league; unbelievable; incomparable; unimaginable
triple; treble; threefold; three-ply; triplicate
natural; reasonable; obvious; usual; common; ordinary
to live (of humans); to reside; to inhabit; to dwell; to abide
rare; uncommon; new; novel; fine; nice
machine; mechanism; instrument; appliance; apparatus
behavior; behaviour; manner; attitude; bearing
what kind of; what sort of; what
to swear; to vow; to take an oath; to pledge
road; path; route; way; distance; journey; road (e.g. to victory)
to be disconnected; to get out of place; to miss the mark; to get it wrong (e.g. guess, expectation); to be removed; to be excluded
why?; what for?; how?; by what means?
all that one has; all that there is; the whole
to reach; to touch; to be delivered; to arrive; to be attentive; to be scrupulous
to hang one's head; to look down; to cast one's eyes downward
something; some kind of; for some reason
grunt; grumble; pimples; spots; cutting into small pieces; simmering
to mutter; to murmur; to grumble; to tweet; to post on Twitter
my goodness!; good lord!; holy cow!
to be placed on; to be set on; to be piled on; to appear (in print); to be mentioned; to be recorded
expression; look; countenance; face
older brother; elder brother; brother-in-law (spouse's older brother or older sister's husband)
to make a vow; to take an oath
technology; engineering; technique; skill; art; craft
detailed; full; minute; knowing very well; knowledgeable (about); well-acquainted (with)
absolutely; definitely; absolute; unconditional; absoluteness
to tear; to rip; to break through (cordon, opponent's defense, etc.); to breach; to defeat; to beat; to break (e.g. silence)
crime; sin; penalty; sentence; fault; responsibility
worst; horrible; horrid; in the worst case; if worst comes to worst