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Insure v.投保
Insure sb/sth against给某人或某物保险，以防万一
—Employer must insuer their employees against accident.
Insurance n.保险
Insurance company 保险公司
recover
① vi.使得到补偿，弥补
=make up for ,compensate for
② vt,康复 recover from
--Nothing can recover our health.
purchase vt.买（比buy要正式，主要用于书面语，还可以是名词）
--Can you purchase freedom with money?
--Yesterday I bought a tie,that look terrible.
purchase money 买进价格
purchasing power购买力
Haul
v.拖曳
=pull with effort our force强调用力拉
--They pauled the boat up the beach.
