Submitted by admin on Mon, 04/28/2014 - 18:07
definition:
The middle section of the body of an insect, between the head and the abdomen, bearing the legs and wings.
sentence:
Upon emergence, adult female wasps were marked individually with small spots of paint on the ventral surface of the thorax between the wings.
difficulty:
hard
toefl frequency:
1
toefl classification: