Carbon dioxide in pure form can asphyxiate because it is heavier than air.
因为二氧化碳比空气要重，纯净的二氧化碳可以使人窒息。
Propolis is rarely available in its pure form.
蜂胶很少是以最原始的状态出现在市场上。
In its pure form, compromise means mutual sacrifice.
纯粹形式上来看，妥协意味着双方的牺牲。
They have isolated the bacterium in its pure form.
他们已经把细菌分离出来，使它们处于较纯的状态。
They have isolated the bacterium in its pure form.
他们已经把细菌分离出来，使它们处于较纯的状态。
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