名词
中文翻译：土壤铅笔
同义词：
['soil pen', 'soil marker']
例句：
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1.He used a soil pencil to mark the boundaries of his garden.
他用土壤铅笔标记了他的花园边界。
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2. The teacher asked the students to use soil pencils to draw their own plants.
老师要求学生们用土壤铅笔画自己的植物。
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3. The scientist used a soil pencil to record the soil composition in the field.
科学家用土壤铅笔记录了田野里的土壤成分。