duration
n[U]
1 time during which sth lasts or continues 持续时间; 期间
of short, long, three years', etc duration 短的、 长的、 持续三年的一段时间
for the duration of this government 本届政府执政期间.
2 (idm 习语) for the duration (infml 口)
(a) until the end of the war 在战争期间.
(b) (fig 比喻) for a very long time 很长的时间
Well, I'm stuck here for the duration, eg for the whole term. 哎, 这段时间(如整个学期)我只得呆在这里了.
You were very kind. You brought out all your jewellery and you told me I could take anything I wanted. There were so many beautiful things that it was hard to choose. And then I saw a lovely diamond necklace with a big blue stone in the centre.