Duō / hā / shì / Kǎ / tǎ / ěr / de / shǒu / dū / yě / shì / zhòng / yào / de / shāng / yè / zhōng / xīn多哈是卡塔尔的首都,也是重要的商业中心。Doha is the capital of Qatar and an important commercial center.