| 单词 | beneficial insect |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔beneficial〕The bee is a beneficial insect.蜜蜂是益虫。文馨英汉〔insect〕Unfortunately, pesticides kill off beneficial insects as well as harmful ones.不幸的是，杀虫剂不仅杀灭害虫还会杀死益虫。牛津搭配 |
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