herbicides

搭配Collocations

broad-spectrum herbicide

广谱除草剂

Farmers often use a broad-spectrum herbicide to clear weeds before planting.农民常在种植前使用广谱除草剂清除杂草。

selective herbicide

选择性除草剂

A selective herbicide kills weeds without damaging the crop.选择性除草剂在杀死杂草的同时不会伤害作物。

systemic herbicide

内吸性除草剂

This systemic herbicide is absorbed through the leaves and travels to the roots.这种内吸性除草剂通过叶片吸收并输送到根部。

apply herbicide

施用除草剂

You should apply the herbicide on a calm day to prevent drift.你应该在无风的日子施用除草剂，以防药剂飘移。

herbicide resistance

记忆技巧Memory Tip

把 herbicide 拆成 herb（草）+ cide（杀），想象拿着喷壶向杂草喷除草剂。

语境与语域Context & Register

语域：formal 常见场景：agriculture、environmental policy、scientific writing herbicide 多用于正式或技术性场合，常见于农业、环保和科学文本；日常口语中比较常用 weed killer。

发音与拼写Pronunciation & Spelling

Genuine sound matches: pesticide, suicide, homicide, genocide, and decide share the final /saɪd/ sound with herbicide, and side also ends with /saɪd/. Note that in herbicide the primary stress is on the first syllable, but the final -cide is a secondary-stressed rhyming syllable. Beware of lookalikes that sound different, such as cider /ˈsaɪdər/ and deciduous /dɪˈsɪdʒuəs/.

用法优先级Usage priority

Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。

一起学习词形Learn the forms together

页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。