结果表明，大棚和露天芹菜、菠菜都存在轻度砷污染；

The results showed that the big-shed or open-air celery and spinach were all polluted lightly by As;

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结果表明，大棚和露天芹菜、菠菜都存在轻度砷污染；

The results showed that the big-shed or open-air celery and spinach were all polluted lightly by As;

youdao