lead in翻译是：lead in 英[li:d in] 美[lid ɪn] [词典] 引导入内; [例句]The American and Japanese navies took the lead in the development of naval aviation美国和日本海军是发展海军航空部队的佼佼者。
1.引进，引入2.导入3.开场白
没什么事是百度解决不了的
