on the rocks idiom
informal濒临崩溃
likely to fail soon
I think their marriage is on the rocks. 我觉得他们的婚姻濒临解体。
（酒）加冰块的
If you have an alcoholic drink on the rocks, you have it with pieces of ice.
I'll have a whisky on the rocks, please. 请给我来杯加冰块的威士忌。