Submitted by admin on Fri, 02/06/2015 - 22:16
definition:
people who examine ancient sites and objects to learn about the past
sentence:
A team of University of Sydney archaeologists have used groundbreaking laser imaging to map central Angkor and to help identify how unstable climate change damaged the city's water system and contributed to its demise.
difficulty:
medium
toefl frequency:
2
toefl classification: