慢速英语:特朗普批准钢铝关税并豁免加拿大和墨西哥

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tariff - n. tax on goods coming or leaving a country

basis - n. a fixed pattern or system of doing something

flexibility - adj. easily changed

response - n. something that is done as a reaction to something else

arsenal - n. a group of things or weapons that are available to be used

disposal - n. available for someone to use

negative - adj. harmful or bad

consequence - n. something that happens as a result of a particular action