慢速英语:美国卫生官员称完全接种疫苗后无需佩戴口罩
日期:2021-05-14
Words in This Story
participate –v. to be involved with others in doing something; to take part in an activity or event
mask – n. a covering for the face or part of the face: especially related to preventing the spread of disease
convenient –n. permitting something to be done easily without trouble
lottery –n. a system used to decide who will get or be given something by choosing names or numbers by chance
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