儿童的教养源于成人的修为而非说教。
The hard-working petroleum spirit must never be abandoned. It is our family heirloom.
Most people are too fretful, they worry too much.Success means being very patient, but aggressive when it's time.
In mathematics, you don't understand things. You just get used to them.
即使世界正在转向低碳解决方案,石油和天然气的创新也不会停止。