留便条: leave a note
给某人留个便条: message to sb.
给某人留便条: drop sb.a linedrop sb.a line
给某人留一个便条: leave sb a noteleave sb a note
leave sb a note 给某人留一个便条
留言、留便条、给便条: take/leave/give a message for
leave a message
leave a note/message
leave a note or message
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