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をめぐって， を巡って
1. concerning ..., over ..., about ..., centering on ...
关于，至于
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応酬， おうしゅう
1. exchange (of words, views, punches, cups, etc.), give-and-take
2. reply, answer, response, reciprocation, retort, riposte, tit for tat
交流、交换（言语、观点、拳脚、酒杯等），互惠互利；回复、回答、回应、报复、反驳、回击、以牙还牙
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
