除第一次外,所有内容均应自上而下构建。
每一个挑战都是学习和成长的机会。
I don't count my sit-ups. I only start counting when it starts hurting.
Leadership in the oil sector means balancing profitability with responsibility.
Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.