The entire sound track consists of three essential ingredients: the human voice, sound effects and music.

整个音轨由三个基本要素组成：人声、音效和音乐。

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The essential ingredients of governance are shown in Figure 2.

图2中显示出治理的必要成分。

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But there IS a way to make sure they always stick EVENTUALLY and it requires these 3 essential ingredients.

但是却有一种办法来确保他们最终总是能够坚持下来，它需要以下3个必要因素。

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The same four essential ingredients - flour,water,yeast and salt - can yield 10,000 different combinations.

VOA: standard.2010.07.16

The handsome setting, superb food and trendy crowd give Scarpetta all the essential ingredients for a Three Star experience.

FORBES: The Forbes 2008 All-Star Eateries in New York: Three Stars

The essential ingredients of good open-plan office acoustics are evenly distributed sound-absorptive materials and a minimum level of background noise throughout.

BBC: The pleasures and perils of the open-plan office

These endeavors violate many of the essential ingredients of sound economics.

FORBES: Does Limiting Government Really Condemn Children To Starvation?