动 （把一种东西混合到另一种东西里去） mix，adulterate，blend；

[例句] 把糖掺入黄油然后搅拌至滑软细腻。 Blend the butter with the sugar and beat until light and creamy.

[例句] 任何人都可能会进来在酒中掺麻醉剂。 Anyone could have got in and doped the wine.