Smaller plastic pieces can also enter the food chain and end up in our bodies.

更小的塑料碎片也可以进入食物链，最终留在我们的身体里。

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Plants offer a way for toxic metals to enter the food chain.

植物是有毒金属进入食物链的一种方式。

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Food quality control laboratories could use this new tool to detect these drugs before they enter the food chain.

食品质量控制实验室可以利用这个新的工具在他们进入食物链之前来检测来检测这些药物。

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It did not enter the food chain and investigations into the origin of the meat product are continuing.

BBC: Burgers

Meat from any that are not tested may not enter the food chain.

CNN: Beef sales slump after EU BSE scare

While the FSA insists there is a low risk to health, bute is not allowed to enter the food chain.

BBC: Horsemeat scandal: Birds Eye withdraws UK ready meals