详细解释:vt. 迫使, 使成为必需, 需要
词型变化：
形容词:necessitative名词:necessitation动词过去式:necessitated过去分词:necessitated现在分词:necessitating第三人称单数:necessitates英语解释：
动词 necessitate:
require as useful, just, or proper同义词：ask, postulate, need, require, take, involve, call for, demand