请输入您要查询的英文单词：
单词
prolongation
释义
prolongation
NOUN
VERY FORMAL
/ˌprəʊlɒŋˈgeɪʃn/
1
U
the action of making something last longer 延长；拉长
2
C
an increase in the length of time that something lasts （持续时间的）延长，加长