There are about 4,500 species of cockroach , of which 30 species are associated with human habitations and about four species are well known as pests .
2007 .
2007 .
これをもっとわかりやすくしてください: There are about 4,500 species of cockroach , of which 30 species are associated with human habitations and about four species are well known as pests . 出力: