波音与洛克希德合资的企业“联合发射联盟公司(ula)”，已公开承诺将在四年内准备好。
United Launch Alliance (ULA), a joint venture between Boeing and Lockheed, has publicly promised to be ready in four years.
这家一度因为只公开了那些积极的而不是所有的儿科实验结果而受到批评的公司在兑现承诺方面不做得不错。
The company, which was criticized at the time for failing to publicize all pediatric trials of Paxil, not just the positive ones, made good on its promise.
他表示，BTC承诺在这封信送到各大航空公司CEO之前，不会公开任何已签字的人的姓名。
He says commitments were made not to release the names of the signatories until the letter is delivered.
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