preinvestigate
词形变化
preinvestigated
preinvestigates
三单
preinvestigates
preinvestigating
preinvestigating
现在分词
preinvestigated
过去式
preinvestigated
过去分词
释义与例句
v.
-
1.
To investigate in advance.
及物It is very important to establish awareness among students to preinvestigate the toxic or hazardous properties of a chemical which they are about to use.
词源
From pre- + investigate.
来源:wiktionary