If it suffices to direct activity successfully, nothing more is required, since its whole function is to set a mark in advance; and at times a mere hint may suffice.

• 如果这个目的能成功地指导活动,我们就不再需要别的东西,因为它的全部作用在于事先确立一个标帜;有时只要暗示一下就够了。