波音发文祝贺C919首次成功商飞 【词语拼音】:__ bo yin fa wen zhu hec919 shou ci cheng gong shang fei_
波音发文祝贺C919首次成功商飞 【词语简写】:__byfwzhc919sccgsf_
波音发文祝贺C919首次成功商飞 【英文拼写】:Boeing congratulates C919 on its first successful commercial flight