VOA慢速英语:印尼指责波音飞机问题造成狮航空难

summary – n. a shorter version of a document that gives the most important information

automate – adj. self-operating or robotic

occur – v. to happen

altitude – n. the height of something above the level of the sea

certification – n. documentation; a written guarantee

manual – n. a document or booklet that tells how to use something

install – v. to make something ready for use by putting everything in place and making changes

mis-calibrate – v. to make a bad or wrong measurement

aviation – n. related to or involving the operation of airplanes

recommendation – n. suggestion; proposal