'test flight' 的定义
含 test flight的例句
The test flight was the first for the project since January. The Sun (2014)Last week the company said it completed its first test flight above Britain. Times, Sunday Times (2015)His cycling experience earned him a place as the back-up pilot on the first test flights. Times, Sunday Times (2012)The US plane maker yesterday warned the first test flights may now not take place until next year. The Sun (2009)
test flight 的定义—— 柯林斯 英语词典
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