He has a large body, but thin legs.

他身宽腿细。

《牛津词典》

The reaction itself also takes place inside the nanotubes, which are hollow and have a large internal surface area thanks to their thin 20-nanometer-thick walls.

反应本身也在纳米管内部发生。这种中空的纳米管只有20纳米厚的薄壁，所以具有巨大的内表面积。

youdao

And because domestic financial markets are very thin, most African countries hold a large part of their debt in foreign currency, which is especially hazardous when local currencies plunge.

因为国内财政市场十分薄弱，所以很多非洲国家大部分债款都是以外币的形式储存，如此一来，一旦本国货币贬值，情况就十分危险了。

youdao

The payload of the rocket consisted of a large, thin-walled container.

BBC: Syria's chemical weapons stockpile

Meals also usually include malum, a salad of chopped leafy greens and coconut, crispy poppadoms (a large circular piece of thin, spiced bread), dal (a type of lentil stew), coconut sambal (a spicy condiment), home-made chutney and of course, fragrant steamed rice.

BBC: Foodie paradise in Sri Lanka's hill country

Denton is tall and rangy, and has a famously large head that sits precariously on a thin neck and narrow shoulders, leaving the impression of an evolved brain that is perhaps a little too conscious of its pedestrian context.

NEWYORKER: Search and Destroy