VOA慢速英语:Astronomers Get Window Seat for Eclipse

solar eclipse – n. an occasion when the sun looks like it is completely or partially covered with a dark circle because the moon is between the sun and the Earth

beg – v. to ask (someone) in a very serious and emotional way for something needed or wanted very much

tornado – n. a violent and destructive storm in which powerful winds move around a central point

once in a lifetime – n. a rare event

schedule - n. a list of times for a series of events or actions

view - n. an observation