proliferate v. 快速增长 (to increase in number or amount quickly) / prəˈlɪfəˌreɪt/
prolific adj. 多产的 (producing a large amount of something) / prəˈlifik/
prolix adj. 冗长的 (using too many words)
profligate adj. 奢侈的,花钱大手大脚的 (carelessly and foolishly wasting money, materials) /ˈprɑfləɡət/
doubtable adj. 可疑的 (uncertain or unlikely; able to be cast into doubt) /ˈdaʊdəb(ə)l/
redoubtable adj. 令人肃然起敬的 (causing or deserving great fear or respect) / rəˈdaʊdəb(ə)l/
impair v. 损害 (to make (something) weaker or worse) / imˈper/
repair v. 修复 (to restore by replacing a part or putting together what is torn or broken; to fix) / rəˈpɛr/
obtrude v. 强迫 (to force or impose (as oneself or one's ideas) without warrant or request) / əbˈtrud/
obtuse adj. 愚钝的,笨的 (stupid or unintelligent) /əbˈtjuːs/