A registration certificate of the foreign substance is valid within 1 year.

外来物质的登记证在1年内是合法的。

youdao

To combat the foreign substance, the immune system releases a chemical called histamine.

为了抵抗这种外源性物质，免疫系统释放一种称为组胺的化学物质。

youdao

Even with a similar tissue match, the body still treats the new heart as a foreign substance.

甚至组织型相配，人体仍然把新心脏当做外来物对待。

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British Foreign Secretary David Miliband stressed that nice words alone would not do, but real substance must come out of the meeting.

VOA: standard.2009.03.29

Foreign Minister Krishna said the understandings reached with Clinton add a "qualitative substance" to the bilateral relationship.

VOA: standard.2009.07.20

They say this appears to be because it is not recognised as being a "foreign" substance.

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She has adjusted Germany's bilateral relations, but the substance of foreign policy has changed little.

ECONOMIST: German-American relations: Ready for a Bush hug? | The

In her various roles, Romans has extensively covered immigration reform, substance abuse, homeland security, American foreign policy with China and Latin America and education.

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