| 单词 | flight line |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔crew chief〕A noncommissioned air force officer who is in charge of a group of enlisted people, such as maintenance specialists, on the flight line.地勤组长：在航线上负责一群在册人员，例如维修专业人员的非正式委任的空军军官美国传统 |
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