pei

US

UK

A1 初級
abbr.縮寫愛德華王子島 (加拿大省份)
We are flying to PEI next week for a vacation.
abbr.縮寫聚醚酰亞胺 (一種高性能聚合物)
PEI is used in various high-performance applications due to its thermal stability.

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