Submitted by admin on Thu, 09/17/2015 - 23:32
definition:
simple in structure, easy to do
sentence:
No one wants to send elementary school children on public transportation by themselves through crime-ridden neighborhoods.
Particle decay occurs when elementary particles spontaneously transform into other elementary particles.
difficulty:
easy
toefl frequency:
3
toefl classification:
adverb:
adjective:
adverb sentence:
adjective sentence:
verb:
verb sentence:
noun:
noun sentence: