Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
robust –adj. strong and healthy
frail –adj. having less than the normal amount of strength, easily damaged
symptom –n. a change in the body mind that shows disease is present
intake –n. the amount of food or drink that is taken into you body
calories –n. a measure of heat used to describe the amount of energy a food or drink will produce in the human body
