proof bar造句

例句与造句

1. With the help of Russian scientists, a team from Los Alamos and Sandia affixed tamper-proof bar-code labels on each disk.
2. During the escape attempt the men held a number of guards hostage, but gave up when they failed to cut through the tool-proof bars.
3. It's difficult to find proof bar in a sentence. 用proof bar造句挺难的