来自毛素银的问题
Weacceptyourorderandareenclosingyouoursalescontractinduplicateofwhichpleasecountersignandreturnonecopytousforourfile.就是which前为什么有of呢
Weacceptyourorderandareenclosingyouoursalescontractinduplicateofwhichpleasecountersignandreturnonecopytousforourfile.就是which前为什么有of呢

