The first essential characteristic of the rhetorical device-pun, is that the main part of its meaning lies in equivocality. 双关辞格的第一个本质上的特点，在于双关辞格的话语意义的重心落在歧义上。
In the normal expression situation, we must avoid equivocality in the communication as much as possible, but the key point of the rhetorical device-pun is just equivocality. 在正常的表达的情况下，我们在交际中要尽量避免产生歧义，但是双关辞格看重的却正是歧义。
