她喜欢商务舱的安静环境。

She likes the quiet environment of business class.

是谁转动旋钮，在安静环境中增强扩音，在吵闹环境中降低扩音的？

Who turns the knob to increase or decrease the amplification in a quiet or in a loud environment?

年纪大的居民担心他们安静的公园会因为新建的剧院而全面满负荷运转，破坏了公园原有的安静环境。

And older residents say they fear their sleepy park could wind up providing entertainment year-round to justify the cost of the amphitheater.

放松技巧冥想是一种在安静环境中保持舒适姿势所进行的技巧。

Meditation is a technique performed in a quiet area sitting in a comfortable position.

思考者也重视独处，喜欢在不被干扰的安静环境中最好地完成工作。

Thinkers also value solitude and get their best work done in quiet settings with little to no distractions.

通常是在入睡前的安静环境下，我们一边回顾一天，一边努力想清楚自己的朋友和家人会怎么评价自己的所作所为。

Often in a quiet moment, just before going to sleep, while reviewing the day, we try to work out how friends and family might interpret what we've said and done.