Metaphorical semantic extension takes place in the course of radiation, while metonymical semantic extension takes place in the course of concatenation. 通過(guò)隱喻思維引起的詞義延伸主要通過(guò)輻射過(guò)程來(lái)實(shí)現,而通過(guò)轉喻思維引起的詞義延伸主要通過(guò)鏈接過(guò)程來(lái)實(shí)現。