preform的翻译，读音
英/pri:'fɒ:m/
释义：
vt. 预先形成
n. 预成型品
v. form into a shape resembling the final, desired one
v. form or shape beforehand or determine the shape of beforehand
n. 预成型品
v. form into a shape resembling the final, desired one
v. form or shape beforehand or determine the shape of beforehand
词态
过去分词 preformed现在分词 preforming
复数 preforms
过去式 preformed
第三人称单数 preforms