Between the second button and the third button of the shirt.

夹在衬衫的第二和第三粒钮扣之间。

youdao

Toying with the third button of his dungaree shirt, he turned his gaze toward the pine trees outside and then back again to his father.

NEWYORKER: Town of Cats

The third button says Barb, B-A-R-B, delegate for Muskie.

NPR: With White House Bogged Down By Scandal, GOP Looks For Boost

The McLarens of Jenson Button and Lewis Hamilton will make up the third row of the grid, with Button in fifth place.

BBC: Sebastian Vettel pips Fernando Alonso to German F1 pole