Mammy's lips were large and pendulous and, when indignant, she could push out her lower one to twice its normal length.

嬷嬷那片又宽又厚的嘴唇向下耷拉着，她生起气来会把下嘴唇拉得有平时两倍那么大。

The strength of this motive in inducing a decision to hold a given aggregate of cash will chiefly depend on the amount of income and the normal length of the interval between its receipt and its disbursement.

这种促使人们决定持有一定现金总量的动机的强度主要取决于收入的数量以及收入和支出之间的正常间隔时间长短。