Your stance on a particular matter is your attitude to it.
例句
The Congress had agreed to reconsider its stance on the armed struggle...国会已同意重新考虑其对武装斗争的态度。They have maintained a consistently neutral stance...他们一直持中立态度。
N-COUNT
站姿
Your stance is the way that you are standing.
例句
Take a comfortably wide stance and flex your knees a little...双腿适度分开站立，双膝稍稍弯曲。The woman detective shifted her stance from one foot to another.女侦探改变了站姿，把重心从一只脚移到另一只脚。