都应至少包括一些场景，以突出VNC的不可或缺性。
Should include at least a few scenes that reinforce VNC's indispensability.
理解和论证了犯罪客体作为构成要件之一的不可或缺性。
The object of crime is essential as one of elements of constitution of crime.
但问题是，我们有必要这么做吗？没人会否认食物、居所、防护、健康与教育的不可或缺性。
The question is: why should we? Nobody denies the imperatives of food, shelter, defense, health and education.
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