This technique is most often performed under a general anesthetic but in certain situations may be done under local anesthesia with sedation or spinal anesthesia.

手术通常需要全身麻醉，有时也可能采用局部麻醉+镇静或脊髓麻醉。

youdao

In certain situations I might say that I'm a blogger, author, or speaker, but that's mainly what I say to people who are asleep and I don't have time to wake them up in that particular moment.

在特定的情况下我会说我是博主、家、演说家，但是那主要是我对那些睡着的和在那个特殊的时刻我没有时间唤醒的人说的。

youdao

Balanced Brianna - she probably has one of the other personal styles mentioned in this guide but, understands clearly the certain situations require she dresses up or down.

八面玲珑- Brianna她可能属于上面描述的某种类型，但是她了解不同的场合需要不同的风格。

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You can never know for certain in these situations, but Sullivan's staredown of Trotta may have been his last action ever as a professional footballer.

WSJ: Last-Second Soccer Magic Lifts Doncaster to Promotion

Potassium chloride has been employed as a salt substitute in certain situations in the past, but relatively sparingly.

FORBES: Salt: A Favorite Ingredient Gets A Molecular Makeover

Voice control wouldn't be practical in all situations, but it could be enormously helpful for certain operations, like adjusting settings or reviewing images.

ENGADGET: Apple patents Siri-like system for controlling cameras, PMPs through a computer or smartphone