The elastic at the waist gives a nice snug fit.

腰间的松紧带使衣服正好紧紧贴在身上。

《牛津词典》

Tighten the elastic a little. Pin the free end to the facing.

把松紧带收紧一点用大头针把没固定的一端钉在贴边上。

youdao

Do you know what is stronger than steel, lighter than a feather and as elastic as a rubber band?

你知道有什么是比钢铁还要强，比羽毛还要轻，和橡皮筋一样有有弹性吗？

youdao

We leave you with the song "Elastic Love" which the British-Sri Lankan performer M.I.A helped write.

VOA: special.2010.07.16

Whilst Northern Ireland's constitutional position is particular, the Games have provided plenty of examples of how elastic a concept national identity can be.

BBC: An Olympian spirit of generosity

"Michael has one flaw in my view that there is hardly a weekend that he hasn't been off the road at one time or another and sometimes several times because he stretches the elastic a tad too far, " said the 67-year-old Scot.

BBC: Michael Schumacher and the Ferrari prancing horse emblem

Millions of simultaneous users play Farmville or Draw Something (which scaled up to 36 million users in 6 weeks), which requires a simple, fast, elastic database (called a NoSQL database, a new category of product designed for the age of big data), that can process and deliver massive amounts of user and other types of data in real time.

FORBES: The Big Deal On Big Data