A writer can only vaguely trace the plan in advance because it is necessarily subject to the instability of all hypotheses; the problem has many forms, complications, and circumstances that are difficult to foresee and settle in detail.

• 作家事先只能依稀追踪他的计划，因为所有的假设都不是一陈不变的；问题是形式多样的、综复杂的、时因地的，因而要详细预见和处理非常困难。