他选择了一条深蓝色的腰封来搭配他的晚礼服。

He chose a navy blue ___cummerbund to match his tuxedo for the formal event.

新郎选择了一条深蓝色的礼服腰带搭配他的燕尾服。

The groom chose a dark blue ___cummerbund to match his tailcoat.