prolongation
US /ˌproʊ.lɑːŋˈɡeɪ.ʃən/
UK /ˌprəʊ.lɒŋˈɡeɪ.ʃən/
名詞
延長
the act of making something last a longer time:
例:
•
More research is being done into the prolongation of life.
延長
the act of making something last a longer time: