慢速英语:美国试射中程陆基巡航导弹 曾在中导条约禁止范围

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course – n. the action of moving in a path

escalate – v. to increase

lesson – n. something learned by studying or from experience

intermediate – adj. halfway or in the middle

range – n. the space or distance between possible extremes

ballistic missile – n. a weapon that is sent over a great distance and then falls to the ground and explodes

region – n. an area

pursue – v. to follow or continue

view – n. an opinion