工人们用金属条加固了仓库的门。

The workers reinforced the warehouse door with metal ___battens.

工人们用木条固定了屋顶的防水布。

The workers ___battened the tarpaulin to the roof with wooden strips.

那些贪婪的商人靠榨取工人的血汗而发家致富。

The greedy merchants ___battened on the sweat and toil of the workers.