不要虚度光阴 Don't dream away your time ; Do not waste time
不要虚度时间 Don't dream away your time
不要虚度时光了 don't dream away your time
我不需要虚伪的爱情 I don't need false love
要谦虚 Be humble ; To be modest
但要学会谦虚 be modest
决不要挥霍虚度 Don't blow it away
虚假需要 false needs
态度要谦虚 Be humble
要求虚拟语气的动词 Verbs taking subjunctive
《管子》也认为要虚静恬淡，专心致志，才可能达到最高的认识。
"Guan Zi" also thought one wants empty static indifferent to fame or gain, wholly absorbed, only then possibly achieves the highest understanding.
在我的测试中，虚表上的查询比做同样查询的TimeSeries函数要慢一个数量级。
In my tests, it can be an order of magnitude slower than a TimeSeries function that does the same query.
使用动态强制类型转换要小心。只要有可能，定义和使用虚函数比直接接管类型管理好得多。
Dynamic casts should be used with caution. Whenever possible, it is much better to define and use a virtual function rather than to take over managing the types directly.
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