腹背受敌, 被两面夹攻

between the hammer and the anvil hammer anvil steam hammer anvil paddle and anvil between cup and lip few and far between between wind and water betwixt and between between A and B between you and me between Scylla and Charybdis between the hammer and the anvil hammer anvil steam hammer anvil few and far between between Scylla and Charybdis between wind and water between -and -within-plant between you and me between cup and lip between man and man anvil Virchow's chisel and hammer