VOA慢速英语:Running in Cold Weather Improves Performance(翻译)

bitter – ad. intensely unpleasant especially in coldness or rawness <a bitter wind>

replicate – v. to repeat or copy (something) exactly

10K – n. a long-distance road running competition over a distance of ten kilometers (6.2 miles)

chamber – n. a room used for a special purpose

mechanism – n. a process or system that is used to produce a particular result

strain – n. an injury to a body part or muscle that is caused by too much tension, effort, or use

thermal – adj. of, relating to, or caused by heat : designed to keep you warm by preventing heat from leaving your body

dehydration – n. to lose too much water

stress – n. physical force or pressure

personal best – phrase the best achievement one has ever had <Her time in the race was a personal best.>