N-COUNT
邊緣；周圍；外圍
If something is on the periphery of an area, place, or thing, it is on the edge of it.
例句
Geographically, the UK is on the periphery of Europe, while Paris is at the heart of the continent...
從地理位置上講，英國處于歐洲邊緣，而巴黎卻位于歐洲大陸的中心位置。
Taste buds are concentrated at the tip and rear of the tongue and around its periphery.
味蕾集中于舌尖、舌根和舌頭兩側。