certain [?s??rtn]

adj.確實(shí);確定;肯定;確信;無疑;(不提及細(xì)節(jié)時(shí)用)某事，某人，某種

pron.(不提及人或事物的名稱時(shí)用)某些

The climbers face certain death if the rescue today is unsuccessful.

救援行動如果今天不能成功，登山隊(duì)員必死無疑。

For certain personal reasons I shall not be able to attend.

由于某種個(gè)人原因，我將不能出席

curtain [?k??rtn]

n.窗簾;簾;幔;(遮隔房間的)帷幔;床帷;(舞臺上的)幕，幕布，帷幕

v.給(窗戶或房間)裝上簾子

to draw/pull/close the curtains 把窗簾拉上

It was eleven in the morning but the curtainswere still closed .

已是早上11點(diǎn)鐘了，可窗簾還拉著。