Submitted by admin on Mon, 04/14/2014 - 16:10
definition:
Interaction between two different organisms living in close physical association, typically to the advantage of both
sentence:
We have a symbiotic relationship, he does all my DIY and drives me to the shops, I deal with his paperwork and make his appointments.
difficulty:
medium
toefl frequency:
2
toefl classification:
adverb:
adjective:
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verb:
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noun:
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