新证据表明人类祖先用鲜花陪葬

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Neanderthal – n. a type of early human being that existed very long ago

archaeology – n. science that deals with past human life and activities by studying the bones, tools, etc., of ancient people

pollen – n. a number that indicates the amount of pollen in the air and that is used by people who get sick from breathing in pollen

contamination – n. to make (something) dangerous, dirty, or impure by adding something harmful or undesirable to it

practical -- adj. logical and reasonable in a particular situation

scavenger -- n. an animal that eats waste, junk, dead animals, etc.

indicate -- v. to show that (something) exists or is true

abstract – adj. relating to or involving general ideas or qualities rather than specific people, objects, or actions of art : expressing ideas and emotions by using elements such as colors and lines without attempting to create a realistic picture