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aphid是什么意思

aphid

英 ['e?f?d]

n. [昆] 蚜蟲

中文詞源

aphid 蚜蟲

詞源不詳。

英文詞源

aphid (n.): 1884, anglicized from Modern Latin aphides, plural of aphis, coined by Linnaeus (1758), though where he got it and why he applied it to the plant louse are mysteries. The theory favored by OED as "least improbable" is that it derives from the plural of Greek apheides "unsparing, lavishly bestowed," in reference either to the "prodigious rate of production" of the insects or their voracity. They also are known as ant-cows.

雙語例句

1. The aphid is now laying waste to the wheat and barley fields.: 蚜蟲正在毀掉一片片的小麥和大麥田地。

2. Since aphid population may become resistant to organophosphorus compounds, avoid excessive spraying.: 因為蚜蟲類對有機磷化物能產生抗性, 所以要避免過多的噴灑.

3. Aphid count on plants in fields do not correlate with virus spread in the same fields.: 田間植株蚜數與同塊田內病毒的擴散程度間無相關性.

4. In general an aphid cannot or hardly identify its host at a distance.: 在一定距離以外,蚜蟲通常不能或難以識別其寄主植物.

5. There is adequate variability in plants to breed for resistance to certain aphid vectors.: 植物有充分的變異性可用于培育對一些蚜蟲介體的抗性.

相關單詞

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