| 单词 | 操作规程 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔radical〕We need to make some radical changes to our operating procedures.我们需要对操作规程进行一些根本性的变革。剑桥高阶〔tightening〕Take-off and landing procedures have been tightened after two jets narrowly escaped disaster.在两架喷气机差点出事故之后，起飞和降落的操作规程更加严格了。柯林斯高阶 |
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