German cockroach:
The German cockroach ("Blattella germanica") is a small species of cockroach, typically about 1.1 to long.
en.wikipedia.org
德國蟑螂:
德國蟑螂（學名"Blattella germanica"），又叫德國姬蠊，是蟑螂的品種之一，身長多為1.0到1.6厘米，比美國蟑螂小，背部呈淺棕色及擁有兩條由頭部至翅膀末端的直紋，飛行距離並不遠。
zh.wikipedia.org
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German cockroach德國蟑螂