形容词
中文翻译：Unknown
同义词：
['non-toxic', 'non-poisonous', 'harmless例句：1. The spray was non-toxic and safe for the environment.（这种喷雾对环境无害。）']
例句：
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1. The spray was non-toxic and safe for the environment.
这种喷雾对环境无害。
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2. The food was non-poisonous and delicious.
这种食物无毒且美味。
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3. The medicine is harmless and effective against the disease.
这种药物对疾病无害且有效。