质量不是一种行为,而是一种习惯。
The circular economy is the only viable future for our industry.
国家是理性的行为体,它们寻求最大化相对权力,以确保在竞争性的国际体系中生存。
No matter what difficulties I encounter, I will continue to sing.
Efficiency is doing things right; effectiveness is doing the right things.