Definition
to agree with and endorse a plan or proposal
支持並同意（某個計劃或建議）
She eventually fell in with the plan and followed the team's direction.
她最終支持了這個計劃並遵循了團隊的方向。
After several discussions, they all fell in with the proposal.
經過幾次討論後，他們都同意了這個提議。
Our views aligned, and we all fell in with the new policy.
我們的觀點一致，我們都支持了新政策。