adj. 不斷的，持續的; 永恒的，始終如壹的; 堅定; 忠實的;
n. [數] 常數，常量; 不變的事物; 永恒值;
[例句]She suggests that women are under constant pressure to be abnormally thin
她暗示說女性總是處在保持身材異常瘦削的壓力之下。
[其他] 復數：constants
linear trend
[詞典] 線性趨勢;
[例句]Growth can be represented by a linear or log linear trend.
增長可以用線性或對數線性趨勢來表示。