即插即用

plug-and-play

namely / that is / i.e. / prompt / at once / at present / even if / prompted (by the occasion) / to approach / to come into contact / to assume (office) / to draw near

to insert / stick in / pierce / to take part in / to interfere / to interpose

old variant of 插[cha1]

to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore