sand martin

美 　英

• n.沙燕
• 網(wǎng)絡(luò)崖沙燕；堤燕；灰沙燕

英漢解釋

n.	1. a small songbird related to the swallow that nests in burrows in sand or river banks and is brown with a white underbelly.

例句

Burrow Nest Biology of Sand Martin in Nanchong, Sichuan

四川南充崖沙燕的洞巢生物學(xué)