1.《21世紀英漢漢英雙向詞典》
(U) [又作 a time] (某壹) 期間,某壹段時間。
for a time 暫時；壹時；
after a time 過壹會兒；
in a short time 不久;
It's a long time since I met you last. 好久不見 [久違] 了。
2.《柯林斯高級英語學習詞典》
[N-UNCOUNT] also a N。
For a long time I didn't tell anyone. 很久我都沒有告訴任何人。
A short time later they sat down to eat. 過了壹小會兒，他們坐下來吃東西。
3.《牛津高階英漢雙解詞典》
[U] portion or measure of time 壹段時間：
What a (long) time you've been! 妳花費那麼長的時間了!
I had a most unpleasant time at the dentist's. 我在牙醫那裏受了大罪。
4.《劍橋高級學習詞典》
noun [U]
I enjoyed my course at first, but after a time I got bored with it.
They stayed with us for a short time.
5.《朗文當代英語詞典》
PERIOD OF TIME [singular, U]
I first met Jennifer a long time ago.
They stopped for a short time to rest the horses.
但《麥克米蘭英語詞典》
[count] a period:
She thought about it for a long time.
The company only started trading a short time ago.