时间: 2025-04-25 23:27:53
美: ['lokəst]
英: ['ləʊkəst]
n. [植保] 蝗虫,[昆] 蚱蜢
最后更新时间:2025-04-25 23:27:53
字面意思:Locust是指一种蝗虫,通常在特定条件下成群出现,能够造成大量的农作物损失。
定义:Locust refers to a type of grasshopper that often migrates in swarms, causing significant agricultural damage.
词性:名词(noun)
词源分析:Locust源自拉丁语“locusta”,意为“蝗虫”。词根“locust-”与古法语和古英语中相似的词汇存在联系,表明其在不同语言中的演变。
历史背景:Locust一词在古代文献中就有记载,尤其是在《圣经》中提及蝗虫是灾难的象征,首次出现的时间可以追溯到公元前的文本。
课本:该单词可能出现在**的初中和高中英语教材中。在牛津和美国的教材中,通常在生物学、生态学教材中出现,适用于高中阶段。
正式与非正式语境:
引证: “The locusts swarmed over the fields, destroying everything in their path.” (来源:农业生态学报告)
特殊场合:
引证: “Studies of locust behavior reveal significant insights into swarm dynamics.” (来源:生物学研究期刊)
The locust swarm devastated the crops across the region.
蝗虫群体摧毁了该地区的农作物。
Farmers are concerned about the potential locust invasion this year.
农民们对今年可能发生的蝗虫入侵感到担忧。
In ancient texts, locusts were often seen as a sign of impending doom.
在古代文献中,蝗虫常常被视为即将来临的厄运的象征。
The locust can travel long distances in search of food.
蝗虫可以长途迁移以寻找食物。
During a locust outbreak, it is essential to control their population.
在蝗虫爆发期间,控制其种群至关重要。
同义词:
反义词:
通过上述分析,可以更全面地理解和使用单词“locust”。
[N-COUNT] Locusts are large insects, similar to grasshoppers, that live mainly in hot areas and often cause serious damage to crops. 蝗虫
例:...a swarm of locusts.…一群蝗虫。