Certain claims are not defined by law - for instance, did you know that labels stating "fragrance" may be misleading because they are not required to specify any of the chemicals used in them?

有些宣传语并不是法律规定的——比如，你知道吗？标签上以香氛开头的产品可能误导消费者，因为它们并未被要求必须标明所含的所有化学物质。

youdao

Certain claims are not defined by law - for instance, did you know that labels stating "fragrance" may be misleading because they are not required to specify any of the chemicals used in them?

—有些宣传语并不是法律规定的——比如，你知道吗？标签上以香氛开头的产品可能误导消费者，因为它们并未被要求必须标明所含的所有化学物质。

youdao

Then the Lord said to him, "Know for certain that your descendants will be strangers in a country not their own, and they will be enslaved and mistreated four hundred years.

耶和华对亚伯兰说：“你要的确知道，你的后裔必寄居别人的地，又服事那地的人；那地的人要苦待他们四百年。

youdao

But we are not going to know for certain which approach makes sense until additional data is in."

VOA: standard.2010.07.16

While he conceded that the public could not know for certain whether the secrecy is due to phone intercept evidence, Mr Ryder called for an "urgent review" into the provision which prevents disclosure and discussion of telephone intercept evidence which he said was "exceptional".

BBC: 'I'd prefer to know the truth' of Duggan death

The paper demonstrated the hypothesis through a complicated experiment in which college students were asked to make a judgment about something they could not know for certain -- guessing someone's weight in a photo -- before having their moods swayed either positively, negatively or neutrally by snippets from films intended to provoke either anger, euphoria or no strong feelings.

CNN: When emotion takes over

Walgreen may not know for certain which plans are steering big orders to mail vendors, but says it will find out using internal sleuthing.

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