breakthrough

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释义
突破
increase, as in scientific knowledge or diplomacy, that removes a barrier to progress:

例句
Ross: Save the breakthroughs for therapy, okay. The clock is ticking,okay? We have no time(Friends)
罗斯：把这个进展留着告诉你心理医生，好呗。时钟滴答的响，啊？我们没时间了。（老友记）