Squirreling
vt. 儲藏（squirrel的現在分詞形式）
??? 情景例句
How often do you go running?
你多久跑步鍛煉一次？
How much is the salary a month?
每月薪水多少？
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某種作用。