从功能上来说这没有什么明显的问题,只要你想,你总可以根据规约实现基于类的OO。
And there is no obvious problem in power, since you can always do class-based OO by convention, if you want.
拥有一辆自己的汽车就意味着行动的自由,没有了限制,也不用为交通系统总让你投币感到头疼,比如公交车和地铁。
Owning an automobile provides freedom of movement and the luxury of avoiding the limited schedules and cramped quarters offered by mass transportation options such as buses and subways.
你总不会想最后发现你做的报告没有录入公司电脑系统里。
You don't want to discover later that your statement never made it into the company's computer system.
You know, someday you have to pay the bill, and there's no plan for paying the bill.
你知道,总有一天你得付清这些帐单,但没有支付的计划。
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