慢速英语:感恩节庆祝活动被新冠病毒改变了

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pandemic – n. a disease affecting many people over a wide area or throughout the world

obesity – n. the medical term for being overweight or very fat

ventilation – n. the movement of fresh air through a room or building

asymptomatic – adj. producing or showing no signs of disease

bubble – n. a thing ball of liquid enclosing air or another gas

household – n. those who live in the same house or home

rapid – adj. marked by a fast rate of motion or activity

caution – n. a warning; telling someone to be careful