lip service
US /ˈlɪp ˌsɜːr.vɪs/
UK /ˈlɪp ˌsɜːr.vɪs/

1.
口頭支持, 口惠而實不至
an expression of agreement or respect that is not accompanied by real conviction or action
:
•
Many politicians pay lip service to environmental protection but do little to implement policies.
許多政客對環境保護只是口頭支持,但很少採取實際行動來實施政策。
•
She paid lip service to the idea of teamwork, but always worked independently.
她對團隊合作的理念只是口頭支持,但總是獨立工作。