单词 | water bug |
释义 | water bugnoun 1Any of various heteropteran bugs that live in or on water, now regarded as constituting the infraorders Nepomorpha and Gerromorpha. 2 US a cockroach (order Blattodea). OriginMid 18th century; earliest use found in William Ellis (c1700–1758), agriculturist and writer. |
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