appetite ['æpɪtaɪt] 词频2 词根: pet

n. 欲望;胃口，食欲;嗜好，爱好;

💡 ap加强动作+pet追寻，寻求+ite表名词→一再追求→有胃口

"He suffered from headaches and loss of appetite ."

近义：hunger, stomach, taste, appetence, appetency, appetition 反义：apathy, indifference, weariness, apositia, hyporexia, anorexia

cold [kold] 词频1

adj. 寒冷的;冷淡的，无情的;失去知觉的;[艺]有冷感的，冷色的; n. 寒冷;感冒，伤风; adv. 完全地;

💡 太凉爽（cool）就感冒（cold）了 弯腰(c)的老人(old)怕 冷

"Her hands were blue with cold."

近义：impersonal, obdurate, unfeeling, stony, stoney, glassy 反义：hearty, kind, loving, sociable, tender, warmhearted

still [stɪl] 词频1

adv. 仍，仍然;更，还要;静静地;〈诗〉常，不断地; adj. 不动的，静止的;不狂暴的，温柔的;没有活力的，死气沉沉的; n. 平静，寂静;剧照;静止摄影;蒸馏器; vt.& vi. （使某物）平静下来，安静;〈古〉烧（酒），蒸馏; conj. 但是;然而;

"Although he's nearly 80, he is still very active."

近义：hush, appease, lull, assuage, mollify, pacify 反义：incite, perturb, shake, trouble, upheave, upset