In their presence I became self-conscious and tongue-tied.

当着他们的面，我变得难为情，说不出话。

《柯林斯英汉双解大词典》

The ecological balance is the instinctive movement of the ecosystem by "self cause, self conduct, natural presence, and self existence".

生态平衡是生态系统“自因、自为、自然、自在”的本能运动。

youdao

Work at becoming comfortable in knowing that beyond your egoic self (which thrives on approval from others) there lies within you the presence of an infinite power acting as your "soul" authority.

当了解到除了热切的自我肯定（往往从别人的赞赏里获得）外，一份充当着你的灵魂权威的无限力量还存在在你内心深处。

youdao

"The people who are generally President Obama's supporters are the least supportive of the U.S.military presence in Afghanistan, mostly Democrats and self-described liberals,"

VOA: standard.2009.10.09

One suspects their presence is self-congratulatory, a reminder that Buffalo has opened its doors to many innovators, not only the Abstract Expressionist painters with whom the Albright-Knox is closely associated.

WSJ: Wish You Were Here | Albright-Knox | They Shuffled Off to Buffalo | By Richard B. Woodward

As he walked toward the stage, he presented a calm presence of a self-assured and humble person.

FORBES: Connect

Rabin is looking ahead to Israeli elections in 1996 and has apparently concluded that he cannot sell a peace treaty with Syria without a U.S. presence to replace Israeli self-reliance.

CENTERFORSECURITYPOLICY: A US force for the Golan Heights? A roundtable discussion