慢速英语:US Assures EU, Seeks "Common Ground with Russia"

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initiative – n. a plan or program that is intended to solve a problem

de-escalate – v. to slow down or decrease

vitality – n. lively or energetic quality

necessary – adj. so important you must do it or have it, an absolute need

unequivocal – adj. very strong and clear with no doubt

unwavering – adj. continuing in a strong and steady way