Topic:Your score (if any):18/36
Key words learned:
◆trace
1[find]；to find someone or something that was lost
2[origin]；to find the origin of something ◇trace back to...
≒back to
◆derive
to come from or be developed from something ◇derive from...(=be derived from...)
≒descend
◆identify
1[recognize]；to recognize someone or something and say or prove who or what they are
2[name]；to tell people who someone is
3[discover]；to find a particular thing or all the things of a particular group ◇identify A as B
≒recognize
◆perceive
1 to think of something or someone in a particular way
2 to notice something that is not easy to notice
≒recognize
◆estimate 1 a guess of what a size, value, amount, etc might be
≒evaluate
Rating of the site: :( :/ :I :)Comments: (too easy / difficult / good level / interesting / boring / (not) effective)Time spent doing activity:
