The manager decided to talk over the new policy with all the staff at next week's meeting.

talk 的意思是"谈话、讨论"。 over 在这里是介词，表示"关于、涉及"的意思。 talk over 是一个短语动词，意思是"详细讨论、商议"，强调就某个话题进行充分交流。