VOA慢速英语:特朗普和拜登在重大问题上意见存分歧

therapeutic – adj. related to treating sickness and providing good effects on the body

mask – n. a covering for part or all of the face

greenhouse – n. a structure or area that traps heat from the sun

response – n. an answer or reaction

tariff – n. a tax paid on a classification of imports or exports