He was unable to specify whether it was the flight data recorder or the cockpit voice register which had been recovered.

他不能够说明找到的黑匣子是飞行数据记录仪呢还是驾驶舱内的语音录音机。

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we are unable to offer you plates of the size you specify.

我们不能供给贵公司特定的那种餐盘的报价。

youdao

Last year, the House and Senate were unable to compromise on another extension of the act, with Republicans opposing Democratic attempts to specify inclusion of native Americans, undocumented immigrants and lesbian, transgender and bisexual women.

CNN: STORY HIGHLIGHTS