adv.

1.在一边，向一边

2.留着

n.

1.旁白（戏剧角色背着台上其他剧中人对观众所说的话）

2.顺便说的话

英语解释

on or to one side

a message that departs from the main subject

out of the way (especially away from one's thoughts)

placed or kept separate and distinct as for a purpose

in a different direction

not taken into account or excluded from consideration

in reserve; not for immediate use

a line spoken by an actor to the audience but not intended for others on the stage