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A substance which protects plants from damage caused by an insecticide or herbicide.
1930s. From safe + -en + -er, after e.g. fastener, softener, etc.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。