to smile back (at a person); to answer someone's smile
to engage in lively conversation
to be busy at work; to work diligently
affectation; showiness; pretence
functional beauty; beauty of function; simplicity and elegance of design
by gender; according to gender; gender-segregated
chilled dessert; frozen dessert
secrecy; highly classified information
show one's real ability; illustration of the distinctive character of (something)
(one's) peers; people around one
available; enabled; can be used; may be used
to gather; to crowd round; to sponge (off someone); to scrounge; to extort; to take (money) through intimidation
in that case; (might not be what was expected or hoped for but) if that's the case
arguing back and forth; bandying words; verbal tug-of-war
long-awaited; long-waited-for; someone who has waited a long time; something that one has waited impatiently for
intentional; deliberate; contrived; artificial
unexpectedly; surprisingly
unexpected (joy, success, etc.); unanticipated; beyond what one hoped; beyond one's expectations
inquiry commission; enquiry commission; research group
habitat; home (e.g. of the tiger)
ecology; life and habits (of an animal); mode of life; way of living
plenary session; general meeting; plenum
doll; puppet; blockhead; idiot; useless person
talk (of the town); rumour; rumor; gossip
beard (esp. on the chin); goatee
double-dealing; double tongue; going back on what one has said; repeating oneself
argument based on emotion; sentimental argument
to fall in love (with); to love
sharing a common destiny; sitting in the same boat
to think out; to devise; to invent; to begin to think; to come up with a plan
the height of folly; sheer stupidity
to beg; to ask; to request; to pray; to wish
agreement; affirmative; aye; yes; OK
to make a joint vow; to swear together; to pledge
intimate; carefree; familiar; friendly
to go to ruin; to go under; to fall; to be destroyed; to die out; to become extinct
fact-finding survey based on interviews; oral survey; interview survey
to comb down; to smooth down