和其他事情一样，实现这一点，有好的方法也有不好的方法，有些实现会带来安全、性能、可靠性和责任性等方面的问题。
Like anything else, there are good ways to do this, and not so good ways, so some implementations will introduce problems with security, performance, reliability, and accountability.
这个黑洞时不时吞下一点气体、一颗任性的行星，乃至一颗完整的恒星。
Every now and then, the black hole swallows a bit of gas, a wayward planet, or even an entire star.
年轻人在一些方面任性鲁莽一点也许没什么大不了，但是在驾车时可不行。
The headstrong recklessness of youth may be fine in some areas, but not behind the wheel of a car.
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