1 mainline /ˈmeɪnˌlaɪn/ adjective Learner's definition of MAINLINE
chiefly US
: belonging to an established and widely accepted group or system主流的;传统的 2 mainline /ˈmeɪnˌlaɪn/ verb
mainlines; mainlined; mainlining
2 mainline
/ˈmeɪnˌlaɪn/
verb
mainlines; mainlined; mainlining
Learner's definition of MAINLINE
slang
: to inject (a drug) directly into a vein静脉注射(毒品) [+ object]
[no object]