diversionn.转向；转移；娱乐活动；临时绕行diversion excavation导流开挖法diversion structures导流建筑物diversion experiment调水试验diversion assumption转用假定diversion hypothesis导离假设导离假设diversion protection导流护岸diversionary tactics牵制战术diversion engineering调水工程diversion of telegram电报的改变路由diversionary argument分散人们注意力的论点