Warning: file_put_contents(): Only 0 of 6172 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 bug river例句_bug river英汉例句_bug river双解例句_魏碑心思朗文词典
Because it needs clean water to survive, the new bug is a crucial "index species" that could be used to gauge a river's health, NIBR's Min-Ha said. 因为它必须在干净的水源地生活,因此它可以被看作是检验水质标准的生物。