Warning: file_put_contents(): Only 0 of 6157 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 Unio例句_Unio英汉例句_Unio双解例句_魏碑心思朗文词典
Any of several freshwater bivalve mollusks of the genera Anodonta and Unio,found in the central United States,that burrow in the sand or mud of lakes and streams. 淡水蚌,發現於美國中部的無齒貝屬和珠蚌屬幾種淡水雙殼軟躰動物的一種,在湖和河中的沙中或泥中挖洞。