Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
commissioner - n. an official who is in charge of a government department or part of a government department
degree - n. an official document and title that is given to someone who has successfully completed a series of classes at a college or university
focus - v. to direct your attention or effort at something specific
motorcycle - n. a vehicle with two wheels that is powered by a motor and that can carry one or two people
positive - n. thinking about the good qualities of someone or something
reflect - v. to cause people to think of someone or something in a specified way
relax - v. to become or to cause (something) to become less tense, tight, or stiff
resilient - adj. able to become strong, healthy, or successful again after something bad happens
sinful - adj. wrong according to religious or moral law
survey - n. an act of measuring and examining an area of land
trench - n. a long, narrow hole that is dug in the ground
