短短 + Number + Measure Word + Noun
The adjective 短 (duǎn) means 'short' in terms of length or duration. It is the opposite of 长 (long) and can describe physical objects or periods of time. When reduplicated as 短短, it emphasizes how brief or small the duration or distance is.
冬天的白天很短,天黑得特别早。
Dōngtiān de báitiān hěn duǎn, tiān hēi de tèbié zǎo.
Winter days are very short, and it gets dark especially early.
短短几年,这个城市变化太大了。
Duǎnduǎn jǐ nián, zhège chéngshì biànhuà tài dà le.
In just a few years, this city has changed so much.
这条裤子有点短,你再试一条吧。
Zhè tiáo kùzi yǒudiǎn duǎn, nǐ zài shì yì tiáo ba.
These pants are a bit short; try another pair.