科学家称北极冬天录得历史最高温

arctic - adj. of or relating to the North Pole or the region around it

cycle - n. a set of events or actions that happen again and again in the same order

crazy - adj. not sane

stuff - n. a group or pile of things that are not specifically described

lid - n. a cover on a box, can, jar, etc., that can be lifted or removed
at bay - phrase. in the position of being unable to move closer while attacking or trying to approach someone
vicious - adj. very violent and cruel