勉强度日

• There are also two competingexplanations : that small bodies keep cool more readily than large ones ( pygmyism tends to be a tropical phenomenon ) or that pygmies live in placeswith unreliable food supplies , and their size means they can make do withsmaller meals
  还有另两种与之竞争的解释：矮小的身材比高大的更容易保持凉爽（侏儒现象倾向于出现在热带）或者侏儒居住的地方食物供应不可靠，长得小意味着能够靠更少的食物勉强度日。