Delimiting period
[計] 限定周期, 定義周期
?? 詞語組成解析
[計] 定界的
period
['p?r??d]
n. 時期;（一段）時間;學時;句號;
adj. 具有某個時代特征的;（關于）過去某一特定歷史時期的;（家具、服飾、建筑等）某一時代的;
peri周圍，靠近+od道路→周期
??? 情景例句
and pursue my career in fashion design
追求我在時裝設計方面的事業(yè)
I ought to write a letter.
我應該寫一封信。
It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
據(jù)估計，在英國蜘蛛一年里所消滅昆蟲的重量超過這個國家人口的總重量。