Vegetarians, especially vegans, need to pay attention getting enough iron, calcium, vitamin D, vitamin B12, and omega–3 fatty acids.

素食主义者特别是绝对素食主义者需要注意补充足够的铁，钙，维他命D，维他命B12和omega–3脂肪酸。

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Another potential cost of this activity is greater exposure to predators since play is attention-getting behavior.

这种行为的另一个潜在代价是更大程度地暴露在捕食者面前，因为玩耍是获得注意力的行为。

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Another potential cost of this activity is greater exposure to predators since play is attention-getting behavior.

这种行为的另一个潜在代价是更大程度地暴露在捕食者面前，因为玩耍是获得注意力的行为。

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