在同时使用了垃圾收集和引用计数的混合系统中，将会发生泄漏，因为系统不能正确识别循环引用。
In a hybrid system, where both garbage collection and reference counting are being used, leaks occur because the system fails to identify a circular reference.
在完全黑暗的条件下，根本无法进行光合作用，但绝大多数光养生物都通过依赖混合营养体的营养循环生存了下来。
No photosynthesis could take place under the complete darkness, but the phototrophs mostly managed to survive based on nutrients cycled by the active mixotrophs.
因此，for循环将在每次呈现时减少阿尔法混合量，以在程序退出前创建有效的淡出效果。
The for loop, therefore, reduces the alpha-blending amount in each pass to create an effective fade-out before the program exits.
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