Submitted by admin on Tue, 09/29/2015 - 12:30
definition:
keep in a certain state, position, or activity
sentence:
The genetic factors that explain why some people seem to maintain healthy lungs despite a lifetime of smoking have been uncovered by scientists.
In the job search process, the number of connections we maintain in our professional and personal networks is often critical.
difficulty:
easy
toefl frequency:
3
toefl classification:
adverb:
adjective:
adverb sentence:
adjective sentence:
verb:
maintain
verb sentence:
noun:
maintenance
noun sentence:
Proper maintenance of a car's engine will preserve its performance and value.