崖沙燕是一种腹部为白色的褐色的鸟。

The sand martin is a brown bird with white underneath.

《柯林斯英汉双解大词典》

妮妮来自于天空，她是一只展翅飞翔的燕子，其造型创意来自北京传统的沙燕风筝。

Among the kite designs, the golden-winged swallow is traditionally one of the most popular. Nini's figure is drawn from this grand tradition of flying designs.

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妮妮来自于天空，她是一只展翅飞翔的燕子，其造型创意来自北京传统的沙燕风筝。

Among the kite designs, the golden-winged swallow is traditionally one of the most popular. Nini's figure is drawn from this grand tradition of flying designs.

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